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Общий знаменатель tan(pi/4+a/2)*((1-sin(a))/cos(a))

Выражение, которое надо упростить:

Решение

Вы ввели [src]
   /pi   a\             
tan|-- + -|*(1 - sin(a))
   \4    2/             
------------------------
         cos(a)         
$$\frac{\left(- \sin{\left(a \right)} + 1\right) \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\cos{\left(a \right)}}$$
tan(pi/4 + a/2)*(1 - sin(a))/cos(a)
Рациональный знаменатель [src]
            /a   pi\      /a   pi\
- sin(a)*tan|- + --| + tan|- + --|
            \2   4 /      \2   4 /
----------------------------------
              cos(a)              
$$\frac{- \sin{\left(a \right)} \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\cos{\left(a \right)}}$$
   /a   pi\             /a   pi\
tan|- + --|   sin(a)*tan|- + --|
   \2   4 /             \2   4 /
----------- - ------------------
   cos(a)           cos(a)      
$$- \frac{\sin{\left(a \right)} \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\cos{\left(a \right)}} + \frac{\tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\cos{\left(a \right)}}$$
tan(a/2 + pi/4)/cos(a) - sin(a)*tan(a/2 + pi/4)/cos(a)
Общий знаменатель [src]
            /a   pi\      /a   pi\
- sin(a)*tan|- + --| + tan|- + --|
            \2   4 /      \2   4 /
----------------------------------
              cos(a)              
$$\frac{- \sin{\left(a \right)} \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\cos{\left(a \right)}}$$
(-sin(a)*tan(a/2 + pi/4) + tan(a/2 + pi/4))/cos(a)
Раскрыть выражение [src]
             /       /a\\
(1 - sin(a))*|1 + tan|-||
             \       \2//
-------------------------
   /       /a\\          
   |1 - tan|-||*cos(a)   
   \       \2//          
$$\frac{\left(- \sin{\left(a \right)} + 1\right) \left(\tan{\left(\frac{a}{2} \right)} + 1\right)}{\left(- \tan{\left(\frac{a}{2} \right)} + 1\right) \cos{\left(a \right)}}$$
                                       /a\                                                      /a\      
                                    tan|-|                                            sin(a)*tan|-|      
           1                           \2/                     sin(a)                           \2/      
------------------------ + ------------------------ - ------------------------ - ------------------------
            /a\                        /a\                        /a\                        /a\         
- cos(a)*tan|-| + cos(a)   - cos(a)*tan|-| + cos(a)   - cos(a)*tan|-| + cos(a)   - cos(a)*tan|-| + cos(a)
            \2/                        \2/                        \2/                        \2/         
$$- \frac{\sin{\left(a \right)} \tan{\left(\frac{a}{2} \right)}}{- \cos{\left(a \right)} \tan{\left(\frac{a}{2} \right)} + \cos{\left(a \right)}} - \frac{\sin{\left(a \right)}}{- \cos{\left(a \right)} \tan{\left(\frac{a}{2} \right)} + \cos{\left(a \right)}} + \frac{\tan{\left(\frac{a}{2} \right)}}{- \cos{\left(a \right)} \tan{\left(\frac{a}{2} \right)} + \cos{\left(a \right)}} + \frac{1}{- \cos{\left(a \right)} \tan{\left(\frac{a}{2} \right)} + \cos{\left(a \right)}}$$
1/(-cos(a)*tan(a/2) + cos(a)) + tan(a/2)/(-cos(a)*tan(a/2) + cos(a)) - sin(a)/(-cos(a)*tan(a/2) + cos(a)) - sin(a)*tan(a/2)/(-cos(a)*tan(a/2) + cos(a))
Собрать выражение [src]
                       /a   pi\
(1 - sin(a))*sec(a)*tan|- + --|
                       \2   4 /
$$\left(- \sin{\left(a \right)} + 1\right) \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)} \sec{\left(a \right)}$$
(1 - sin(a))*sec(a)*tan(a/2 + pi/4)
Объединение рациональных выражений [src]
                /pi + 2*a\
(1 - sin(a))*tan|--------|
                \   4    /
--------------------------
          cos(a)          
$$\frac{\left(- \sin{\left(a \right)} + 1\right) \tan{\left(\frac{2 a + \pi}{4} \right)}}{\cos{\left(a \right)}}$$
(1 - sin(a))*tan((pi + 2*a)/4)/cos(a)
Комбинаторика [src]
                  /a   pi\ 
-(-1 + sin(a))*tan|- + --| 
                  \2   4 / 
---------------------------
           cos(a)          
$$- \frac{\left(\sin{\left(a \right)} - 1\right) \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\cos{\left(a \right)}}$$
-(-1 + sin(a))*tan(a/2 + pi/4)/cos(a)
Степени [src]
                           /     /a   pi\      /  a   pi\\
  /      /   -I*a    I*a\\ |   I*|- + --|    I*|- - - --||
  |    I*\- e     + e   /| |     \2   4 /      \  2   4 /|
I*|1 + ------------------|*\- e           + e            /
  \            2         /                                
----------------------------------------------------------
                      /   /a   pi\      /  a   pi\\       
       / I*a    -I*a\ | I*|- + --|    I*|- - - --||       
       |e      e    | |   \2   4 /      \  2   4 /|       
       |---- + -----|*\e           + e            /       
       \ 2       2  /                                     
$$\frac{i \left(\frac{i \left(e^{i a} - e^{- i a}\right)}{2} + 1\right) \left(e^{i \left(- \frac{a}{2} - \frac{\pi}{4}\right)} - e^{i \left(\frac{a}{2} + \frac{\pi}{4}\right)}\right)}{\left(\frac{e^{i a}}{2} + \frac{e^{- i a}}{2}\right) \left(e^{i \left(- \frac{a}{2} - \frac{\pi}{4}\right)} + e^{i \left(\frac{a}{2} + \frac{\pi}{4}\right)}\right)}$$
i*(1 + i*(-exp(-i*a) + exp(i*a))/2)*(-exp(i*(a/2 + pi/4)) + exp(i*(-a/2 - pi/4)))/((exp(i*a)/2 + exp(-i*a)/2)*(exp(i*(a/2 + pi/4)) + exp(i*(-a/2 - pi/4))))
Тригонометрическая часть [src]
1
$$1$$
      1 - sin(a)      
----------------------
             2        
/        /a\\     2/a\
|-1 + tan|-|| *cos |-|
\        \2//      \2/
$$\frac{- \sin{\left(a \right)} + 1}{\left(\tan{\left(\frac{a}{2} \right)} - 1\right)^{2} \cos^{2}{\left(\frac{a}{2} \right)}}$$
   2/a\             
sec |-|*(1 - sin(a))
    \2/             
--------------------
                2   
   /        /a\\    
   |-1 + tan|-||    
   \        \2//    
$$\frac{\left(- \sin{\left(a \right)} + 1\right) \sec^{2}{\left(\frac{a}{2} \right)}}{\left(\tan{\left(\frac{a}{2} \right)} - 1\right)^{2}}$$
       2*(1 - sin(a))      
---------------------------
                          2
             /        /a\\ 
(1 + cos(a))*|-1 + tan|-|| 
             \        \2// 
$$\frac{2 \cdot \left(- \sin{\left(a \right)} + 1\right)}{\left(\cos{\left(a \right)} + 1\right) \left(\tan{\left(\frac{a}{2} \right)} - 1\right)^{2}}$$
     2/a   pi\ /       /    pi\\
2*cos |- - --|*|1 - cos|a - --||
      \2   4 / \       \    2 //
--------------------------------
               2                
            cos (a)             
$$\frac{2 \cdot \left(- \cos{\left(a - \frac{\pi}{2} \right)} + 1\right) \cos^{2}{\left(\frac{a}{2} - \frac{\pi}{4} \right)}}{\cos^{2}{\left(a \right)}}$$
/       /a\\                   
|1 + tan|-||*(-tan(a) + sec(a))
\       \2//                   
-------------------------------
                  /a\          
           1 - tan|-|          
                  \2/          
$$\frac{\left(\tan{\left(\frac{a}{2} \right)} + 1\right) \left(- \tan{\left(a \right)} + \sec{\left(a \right)}\right)}{- \tan{\left(\frac{a}{2} \right)} + 1}$$
     2    /         1     \
2*sec (a)*|1 - -----------|
          |       /    pi\|
          |    sec|a - --||
          \       \    2 //
---------------------------
           2/a   pi\       
        sec |- - --|       
            \2   4 /       
$$\frac{2 \cdot \left(1 - \frac{1}{\sec{\left(a - \frac{\pi}{2} \right)}}\right) \sec^{2}{\left(a \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{4} \right)}}$$
/       /a\\ /  1            \
|1 + tan|-||*|------ - tan(a)|
\       \2// \cos(a)         /
------------------------------
                 /a\          
          1 - tan|-|          
                 \2/          
$$\frac{\left(\tan{\left(\frac{a}{2} \right)} + 1\right) \left(- \tan{\left(a \right)} + \frac{1}{\cos{\left(a \right)}}\right)}{- \tan{\left(\frac{a}{2} \right)} + 1}$$
                /a   pi\
(1 - sin(a))*sin|- + --|
                \2   4 /
------------------------
             /a   pi\   
   cos(a)*cos|- + --|   
             \2   4 /   
$$\frac{\left(- \sin{\left(a \right)} + 1\right) \sin{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\cos{\left(a \right)} \cos{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
     2/a   pi\             
2*sin |- + --|*(1 - sin(a))
      \2   4 /             
---------------------------
               /    pi\    
     cos(a)*sin|a + --|    
               \    2 /    
$$\frac{2 \cdot \left(- \sin{\left(a \right)} + 1\right) \sin^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\sin{\left(a + \frac{\pi}{2} \right)} \cos{\left(a \right)}}$$
/      1   \           /a   pi\
|1 - ------|*sec(a)*sec|- + --|
\    csc(a)/           \2   4 /
-------------------------------
             /a   pi\          
          csc|- + --|          
             \2   4 /          
$$\frac{\left(1 - \frac{1}{\csc{\left(a \right)}}\right) \sec{\left(a \right)} \sec{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\csc{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
          1 - sin(a)          
------------------------------
                2             
/          2/a\\              
|     2*sin |-||              
|           \2/|     2/pi   a\
|-1 + ---------| *sin |-- + -|
\       sin(a) /      \2    2/
$$\frac{- \sin{\left(a \right)} + 1}{\left(\frac{2 \sin^{2}{\left(\frac{a}{2} \right)}}{\sin{\left(a \right)}} - 1\right)^{2} \sin^{2}{\left(\frac{a}{2} + \frac{\pi}{2} \right)}}$$
  /      1   \    /pi    \       
2*|1 - ------|*csc|-- - a|*sec(a)
  \    csc(a)/    \2     /       
---------------------------------
              2/a   pi\          
           csc |- + --|          
               \2   4 /          
$$\frac{2 \cdot \left(1 - \frac{1}{\csc{\left(a \right)}}\right) \csc{\left(- a + \frac{\pi}{2} \right)} \sec{\left(a \right)}}{\csc^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
/       /    pi\\    /a   pi\
|1 - cos|a - --||*cos|- - --|
\       \    2 //    \2   4 /
-----------------------------
                /a   pi\     
      cos(a)*cos|- + --|     
                \2   4 /     
$$\frac{\left(- \cos{\left(a - \frac{\pi}{2} \right)} + 1\right) \cos{\left(\frac{a}{2} - \frac{\pi}{4} \right)}}{\cos{\left(a \right)} \cos{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
           2*(1 - sin(a))           
------------------------------------
                                   2
             /       1        1   \ 
(1 + cos(a))*|-1 + ------ - ------| 
             \     sin(a)   tan(a)/ 
$$\frac{2 \cdot \left(- \sin{\left(a \right)} + 1\right)}{\left(\cos{\left(a \right)} + 1\right) \left(-1 - \frac{1}{\tan{\left(a \right)}} + \frac{1}{\sin{\left(a \right)}}\right)^{2}}$$
              1 - sin(a)             
-------------------------------------
             2              2        
/       2/a\\  /        /a\\     4/a\
|1 - tan |-|| *|-1 + tan|-|| *cos |-|
\        \4//  \        \2//      \4/
$$\frac{- \sin{\left(a \right)} + 1}{\left(- \tan^{2}{\left(\frac{a}{4} \right)} + 1\right)^{2} \left(\tan{\left(\frac{a}{2} \right)} - 1\right)^{2} \cos^{4}{\left(\frac{a}{4} \right)}}$$
                 /a   pi\
 (1 - sin(a))*sin|- + --|
                 \2   4 /
-------------------------
   /    pi\    /a   3*pi\
sin|a + --|*sin|- + ----|
   \    2 /    \2    4  /
$$\frac{\left(- \sin{\left(a \right)} + 1\right) \sin{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\sin{\left(\frac{a}{2} + \frac{3 \pi}{4} \right)} \sin{\left(a + \frac{\pi}{2} \right)}}$$
/         1     \           /a   pi\
|1 - -----------|*sec(a)*sec|- + --|
|       /    pi\|           \2   4 /
|    sec|a - --||                   
\       \    2 //                   
------------------------------------
               /a   pi\             
            sec|- - --|             
               \2   4 /             
$$\frac{\left(1 - \frac{1}{\sec{\left(a - \frac{\pi}{2} \right)}}\right) \sec{\left(a \right)} \sec{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\sec{\left(\frac{a}{2} - \frac{\pi}{4} \right)}}$$
/         1     \           /a   pi\
|1 - -----------|*sec(a)*sec|- + --|
|       /pi    \|           \2   4 /
|    sec|-- - a||                   
\       \2     //                   
------------------------------------
              /  a   pi\            
           sec|- - + --|            
              \  2   4 /            
$$\frac{\left(1 - \frac{1}{\sec{\left(- a + \frac{\pi}{2} \right)}}\right) \sec{\left(a \right)} \sec{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\sec{\left(- \frac{a}{2} + \frac{\pi}{4} \right)}}$$
/      1   \    /pi    \    /  a   pi\
|1 - ------|*csc|-- - a|*csc|- - + --|
\    csc(a)/    \2     /    \  2   4 /
--------------------------------------
                /a   pi\              
             csc|- + --|              
                \2   4 /              
$$\frac{\left(1 - \frac{1}{\csc{\left(a \right)}}\right) \csc{\left(- a + \frac{\pi}{2} \right)} \csc{\left(- \frac{a}{2} + \frac{\pi}{4} \right)}}{\csc{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
             /    pi\      
      1 - cos|a - --|      
             \    2 /      
---------------------------
                  2        
/        /a   pi\\         
|     cos|- - --||         
|        \2   2 /|     2/a\
|-1 + -----------| *cos |-|
|           /a\  |      \2/
|        cos|-|  |         
\           \2/  /         
$$\frac{- \cos{\left(a - \frac{\pi}{2} \right)} + 1}{\left(-1 + \frac{\cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos{\left(\frac{a}{2} \right)}}\right)^{2} \cos^{2}{\left(\frac{a}{2} \right)}}$$
/         1     \    /pi    \    /  a   pi\
|1 - -----------|*csc|-- - a|*csc|- - + --|
\    csc(pi - a)/    \2     /    \  2   4 /
-------------------------------------------
                 /  a   3*pi\              
              csc|- - + ----|              
                 \  2    4  /              
$$\frac{\left(1 - \frac{1}{\csc{\left(- a + \pi \right)}}\right) \csc{\left(- a + \frac{\pi}{2} \right)} \csc{\left(- \frac{a}{2} + \frac{\pi}{4} \right)}}{\csc{\left(- \frac{a}{2} + \frac{3 \pi}{4} \right)}}$$
   2/a\ /         1     \
sec |-|*|1 - -----------|
    \2/ |       /    pi\|
        |    sec|a - --||
        \       \    2 //
-------------------------
                     2   
   /           /a\  \    
   |        sec|-|  |    
   |           \2/  |    
   |-1 + -----------|    
   |        /a   pi\|    
   |     sec|- - --||    
   \        \2   2 //    
$$\frac{\left(1 - \frac{1}{\sec{\left(a - \frac{\pi}{2} \right)}}\right) \sec^{2}{\left(\frac{a}{2} \right)}}{\left(\frac{\sec{\left(\frac{a}{2} \right)}}{\sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} - 1\right)^{2}}$$
   2/pi   a\ /      1   \
csc |-- - -|*|1 - ------|
    \2    2/ \    csc(a)/
-------------------------
                     2   
   /        /pi   a\\    
   |     csc|-- - -||    
   |        \2    2/|    
   |-1 + -----------|    
   |           /a\  |    
   |        csc|-|  |    
   \           \2/  /    
$$\frac{\left(1 - \frac{1}{\csc{\left(a \right)}}\right) \csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\left(-1 + \frac{\csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc{\left(\frac{a}{2} \right)}}\right)^{2}}$$
             /                 2/a\\
             |          1 + tan |-||
/       /a\\ |                  \2/|
|1 + tan|-||*|-tan(a) + -----------|
\       \2// |                 2/a\|
             |          1 - tan |-||
             \                  \2//
------------------------------------
                    /a\             
             1 - tan|-|             
                    \2/             
$$\frac{\left(\tan{\left(\frac{a}{2} \right)} + 1\right) \left(- \tan{\left(a \right)} + \frac{\tan^{2}{\left(\frac{a}{2} \right)} + 1}{- \tan^{2}{\left(\frac{a}{2} \right)} + 1}\right)}{- \tan{\left(\frac{a}{2} \right)} + 1}$$
/  1            \ /      1        1   \
|------ - tan(a)|*|1 + ------ - ------|
\cos(a)         / \    sin(a)   tan(a)/
---------------------------------------
                1        1             
          1 + ------ - ------          
              tan(a)   sin(a)          
$$\frac{\left(- \tan{\left(a \right)} + \frac{1}{\cos{\left(a \right)}}\right) \left(1 - \frac{1}{\tan{\left(a \right)}} + \frac{1}{\sin{\left(a \right)}}\right)}{1 + \frac{1}{\tan{\left(a \right)}} - \frac{1}{\sin{\left(a \right)}}}$$
   /       /a\\                 
   |1 + tan|-||*(-1 + sin(a))   
   \       \2//                 
--------------------------------
/       /a\\ /   2/a\      2/a\\
|1 - tan|-||*|sin |-| - cos |-||
\       \2// \    \2/       \2//
$$\frac{\left(\sin{\left(a \right)} - 1\right) \left(\tan{\left(\frac{a}{2} \right)} + 1\right)}{\left(- \tan{\left(\frac{a}{2} \right)} + 1\right) \left(\sin^{2}{\left(\frac{a}{2} \right)} - \cos^{2}{\left(\frac{a}{2} \right)}\right)}$$
             /                     /a\\
             |                  tan|-||
/       /a\\ |  1         /a\      \2/|
|1 + tan|-||*|------ - tan|-| - ------|
\       \2// \cos(a)      \2/   cos(a)/
---------------------------------------
                      /a\              
               1 - tan|-|              
                      \2/              
$$\frac{\left(\tan{\left(\frac{a}{2} \right)} + 1\right) \left(- \tan{\left(\frac{a}{2} \right)} - \frac{\tan{\left(\frac{a}{2} \right)}}{\cos{\left(a \right)}} + \frac{1}{\cos{\left(a \right)}}\right)}{- \tan{\left(\frac{a}{2} \right)} + 1}$$
              /           /a\ \            
              |      2*tan|-| |            
/       2/a\\ |           \2/ |    /a   pi\
|1 + tan |-||*|1 - -----------|*tan|- + --|
\        \2// |           2/a\|    \2   4 /
              |    1 + tan |-||            
              \            \2//            
-------------------------------------------
                       2/a\                
                1 - tan |-|                
                        \2/                
$$\frac{\left(1 - \frac{2 \tan{\left(\frac{a}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} \right)} + 1}\right) \left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{- \tan^{2}{\left(\frac{a}{2} \right)} + 1}$$
             /          //  1     for a mod 2*pi = 0\\
/       /a\\ |          ||                          ||
|1 + tan|-||*|-tan(a) + |<  1                       ||
\       \2// |          ||------      otherwise     ||
             \          \\cos(a)                    //
------------------------------------------------------
                             /a\                      
                      1 - tan|-|                      
                             \2/                      
$$\frac{\left(\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\cos{\left(a \right)}} & \text{otherwise} \end{cases}\right) - \tan{\left(a \right)}\right) \left(\tan{\left(\frac{a}{2} \right)} + 1\right)}{- \tan{\left(\frac{a}{2} \right)} + 1}$$
                         /a   pi\       
       2*(1 - sin(a))*tan|- + --|       
                         \4   8 /       
----------------------------------------
/       2/a\\ /       2/a   pi\\    2/a\
|1 - tan |-||*|1 - tan |- + --||*cos |-|
\        \2// \        \4   8 //     \2/
$$\frac{2 \cdot \left(- \sin{\left(a \right)} + 1\right) \tan{\left(\frac{a}{4} + \frac{\pi}{8} \right)}}{\left(- \tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(- \tan^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} + 1\right) \cos^{2}{\left(\frac{a}{2} \right)}}$$
               /           /a\ \
             2 |      2*tan|-| |
/       2/a\\  |           \2/ |
|1 + tan |-|| *|1 - -----------|
\        \4//  |           2/a\|
               |    1 + tan |-||
               \            \2//
--------------------------------
              2              2  
 /       2/a\\  /        /a\\   
 |1 - tan |-|| *|-1 + tan|-||   
 \        \4//  \        \2//   
$$\frac{\left(1 - \frac{2 \tan{\left(\frac{a}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} \right)} + 1}\right) \left(\tan^{2}{\left(\frac{a}{4} \right)} + 1\right)^{2}}{\left(- \tan^{2}{\left(\frac{a}{4} \right)} + 1\right)^{2} \left(\tan{\left(\frac{a}{2} \right)} - 1\right)^{2}}$$
/         2/a\\                          
|    2*sin |-|| /                   2   \
|          \2/| |     1        2*sin (a)|
|1 + ---------|*|----------- - ---------|
\      sin(a) / |   /    pi\    sin(2*a)|
                |sin|a + --|            |
                \   \    2 /            /
-----------------------------------------
                       2/a\              
                  2*sin |-|              
                        \2/              
              1 - ---------              
                    sin(a)               
$$\frac{\left(\frac{2 \sin^{2}{\left(\frac{a}{2} \right)}}{\sin{\left(a \right)}} + 1\right) \left(- \frac{2 \sin^{2}{\left(a \right)}}{\sin{\left(2 a \right)}} + \frac{1}{\sin{\left(a + \frac{\pi}{2} \right)}}\right)}{- \frac{2 \sin^{2}{\left(\frac{a}{2} \right)}}{\sin{\left(a \right)}} + 1}$$
/       1   \ /             2          \
|1 + -------|*|1 - --------------------|
|       2/a\| |    /       1   \    /a\|
|    cot |-|| |    |1 + -------|*cot|-||
\        \2// |    |       2/a\|    \2/|
              |    |    cot |-||       |
              \    \        \2//       /
----------------------------------------
       /       1   \    /a   pi\        
       |1 - -------|*cot|- + --|        
       |       2/a\|    \2   4 /        
       |    cot |-||                    
       \        \2//                    
$$\frac{\left(1 - \frac{2}{\left(1 + \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}\right) \cot{\left(\frac{a}{2} \right)}}\right) \left(1 + \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}\right)}{\left(1 - \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}\right) \cot{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
                                  //  1     for a mod 2*pi = 0\            
/    //  0     for a mod pi = 0\\ ||                          |    /a   pi\
|1 - |<                        ||*|<  1                       |*tan|- + --|
\    \\sin(a)     otherwise    // ||------      otherwise     |    \2   4 /
                                  \\cos(a)                    /            
$$\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\cos{\left(a \right)}} & \text{otherwise} \end{cases}\right) \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}$$
/          /a\  \                         
|       sec|-|  |                         
|          \2/  | /     sec(a)           \
|1 + -----------|*|- ----------- + sec(a)|
|       /a   pi\| |     /    pi\         |
|    sec|- - --|| |  sec|a - --|         |
\       \2   2 // \     \    2 /         /
------------------------------------------
                       /a\                
                    sec|-|                
                       \2/                
             1 - -----------              
                    /a   pi\              
                 sec|- - --|              
                    \2   2 /              
$$\frac{\left(\frac{\sec{\left(\frac{a}{2} \right)}}{\sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \left(\sec{\left(a \right)} - \frac{\sec{\left(a \right)}}{\sec{\left(a - \frac{\pi}{2} \right)}}\right)}{- \frac{\sec{\left(\frac{a}{2} \right)}}{\sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1}$$
/       /a   pi\\ /            /    pi\\
|    cos|- - --|| |         cos|a - --||
|       \2   2 /| |  1         \    2 /|
|1 + -----------|*|------ - -----------|
|          /a\  | \cos(a)      cos(a)  /
|       cos|-|  |                       
\          \2/  /                       
----------------------------------------
                   /a   pi\             
                cos|- - --|             
                   \2   2 /             
            1 - -----------             
                      /a\               
                   cos|-|               
                      \2/               
$$\frac{\left(1 + \frac{\cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos{\left(\frac{a}{2} \right)}}\right) \left(- \frac{\cos{\left(a - \frac{\pi}{2} \right)}}{\cos{\left(a \right)}} + \frac{1}{\cos{\left(a \right)}}\right)}{1 - \frac{\cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos{\left(\frac{a}{2} \right)}}}$$
                                               //  1     for a mod 2*pi = 0\
/    //  0     for a mod pi = 0\\              ||                          |
|1 - |<                        ||*(1 + sin(a))*|<  1                       |
\    \\sin(a)     otherwise    //              ||------      otherwise     |
                                               \\cos(a)                    /
----------------------------------------------------------------------------
                                   cos(a)                                   
$$\frac{\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1\right) \left(\sin{\left(a \right)} + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\cos{\left(a \right)}} & \text{otherwise} \end{cases}\right)}{\cos{\left(a \right)}}$$
/       /pi   a\\ /     /pi    \              \
|    csc|-- - -|| |  csc|-- - a|              |
|       \2    2/| |     \2     /      /pi    \|
|1 + -----------|*|- ----------- + csc|-- - a||
|          /a\  | \     csc(a)        \2     //
|       csc|-|  |                              
\          \2/  /                              
-----------------------------------------------
                       /pi   a\                
                    csc|-- - -|                
                       \2    2/                
                1 - -----------                
                          /a\                  
                       csc|-|                  
                          \2/                  
$$\frac{\left(1 + \frac{\csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc{\left(\frac{a}{2} \right)}}\right) \left(\csc{\left(- a + \frac{\pi}{2} \right)} - \frac{\csc{\left(- a + \frac{\pi}{2} \right)}}{\csc{\left(a \right)}}\right)}{1 - \frac{\csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc{\left(\frac{a}{2} \right)}}}$$
                                  //                a             \
                                  ||    1       for - mod 2*pi = 0|
/    //  0     for a mod pi = 0\\ ||                2             |
|1 - |<                        ||*|<                              |
\    \\sin(a)     otherwise    // ||    2                         |
                                  ||----------      otherwise     |
                                  \\1 + cos(a)                    /
-------------------------------------------------------------------
                                        2                          
                           /        /a\\                           
                           |-1 + tan|-||                           
                           \        \2//                           
$$\frac{\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: \frac{a}{2} \bmod 2 \pi = 0 \\\frac{2}{\cos{\left(a \right)} + 1} & \text{otherwise} \end{cases}\right)}{\left(\tan{\left(\frac{a}{2} \right)} - 1\right)^{2}}$$
                /           /a\ \            
                |      2*tan|-| |            
  /       2/a\\ |           \2/ |    /a   pi\
2*|1 + tan |-||*|1 - -----------|*tan|- + --|
  \        \2// |           2/a\|    \4   8 /
                |    1 + tan |-||            
                \            \2//            
---------------------------------------------
       /       2/a\\ /       2/a   pi\\      
       |1 - tan |-||*|1 - tan |- + --||      
       \        \2// \        \4   8 //      
$$\frac{2 \cdot \left(1 - \frac{2 \tan{\left(\frac{a}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} \right)} + 1}\right) \left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \tan{\left(\frac{a}{4} + \frac{\pi}{8} \right)}}{\left(- \tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(- \tan^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} + 1\right)}$$
             /           //     1        for a mod 2*pi = 0\\
             |           ||                                ||
             |           ||       2/a\                     ||
/      1   \ |    1      ||1 + cot |-|                     ||
|1 + ------|*|- ------ + |<        \2/                     ||
|       /a\| |  cot(a)   ||------------      otherwise     ||
|    cot|-|| |           ||        2/a\                    ||
\       \2// |           ||-1 + cot |-|                    ||
             \           \\         \2/                    //
-------------------------------------------------------------
                                1                            
                          1 - ------                         
                                 /a\                         
                              cot|-|                         
                                 \2/                         
$$\frac{\left(1 + \frac{1}{\cot{\left(\frac{a}{2} \right)}}\right) \left(\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} + 1}{\cot^{2}{\left(\frac{a}{2} \right)} - 1} & \text{otherwise} \end{cases}\right) - \frac{1}{\cot{\left(a \right)}}\right)}{1 - \frac{1}{\cot{\left(\frac{a}{2} \right)}}}$$
/    //    0       for a mod pi = 0\\                                          
|    ||                            || //  1     for a mod 2*pi = 0\            
|    ||1 - cos(a)                  || ||                          |    /a   pi\
|1 - |<----------     otherwise    ||*|<  1                       |*tan|- + --|
|    ||     /a\                    || ||------      otherwise     |    \2   4 /
|    ||  tan|-|                    || \\cos(a)                    /            
\    \\     \2/                    //                                          
$$\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{- \cos{\left(a \right)} + 1}{\tan{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\cos{\left(a \right)}} & \text{otherwise} \end{cases}\right) \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}$$
                                                 //     1       for a mod 2*pi = 0\
                                                 ||                               |
     2/a   pi\ /    //  0     for a mod pi = 0\\ ||     1                         |
2*sin |- + --|*|1 - |<                        ||*|<-----------      otherwise     |
      \2   4 / \    \\sin(a)     otherwise    // ||   /    pi\                    |
                                                 ||sin|a + --|                    |
                                                 \\   \    2 /                    /
-----------------------------------------------------------------------------------
                                       cos(a)                                      
$$\frac{2 \cdot \left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\sin{\left(a + \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right) \sin^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\cos{\left(a \right)}}$$
/    //     0       for a mod pi = 0\\                                          
|    ||                             ||                                          
|    ||     1                       || //  1     for a mod 2*pi = 0\    /a   pi\
|1 - |<-----------     otherwise    ||*|<                          |*sec|- + --|
|    ||   /    pi\                  || \\sec(a)      otherwise     /    \2   4 /
|    ||sec|a - --|                  ||                                          
\    \\   \    2 /                  //                                          
--------------------------------------------------------------------------------
                                     /a   pi\                                   
                                  sec|- - --|                                   
                                     \2   4 /                                   
$$\frac{\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{1}{\sec{\left(a - \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\sec{\left(a \right)} & \text{otherwise} \end{cases}\right) \sec{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\sec{\left(\frac{a}{2} - \frac{\pi}{4} \right)}}$$
/    //     0       for a mod pi = 0\\ //  1     for a mod 2*pi = 0\            
|    ||                             || ||                          |    /a   pi\
|1 - |<   /    pi\                  ||*|<  1                       |*cos|- - --|
|    ||cos|a - --|     otherwise    || ||------      otherwise     |    \2   4 /
\    \\   \    2 /                  // \\cos(a)                    /            
--------------------------------------------------------------------------------
                                     /a   pi\                                   
                                  cos|- + --|                                   
                                     \2   4 /                                   
$$\frac{\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\cos{\left(a - \frac{\pi}{2} \right)} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\cos{\left(a \right)}} & \text{otherwise} \end{cases}\right) \cos{\left(\frac{a}{2} - \frac{\pi}{4} \right)}}{\cos{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
/    //  0     for a mod pi = 0\\ //     1       for a mod 2*pi = 0\              
|    ||                        || ||                               |    /  a   pi\
|1 - |<  1                     ||*|<   /pi    \                    |*csc|- - + --|
|    ||------     otherwise    || ||csc|-- - a|      otherwise     |    \  2   4 /
\    \\csc(a)                  // \\   \2     /                    /              
----------------------------------------------------------------------------------
                                      /a   pi\                                    
                                   csc|- + --|                                    
                                      \2   4 /                                    
$$\frac{\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{1}{\csc{\left(a \right)}} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\csc{\left(- a + \frac{\pi}{2} \right)} & \text{otherwise} \end{cases}\right) \csc{\left(- \frac{a}{2} + \frac{\pi}{4} \right)}}{\csc{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
   2/a   pi\ /       2/a   pi\\ /       2/a   3*pi\\                 /a   pi\
sin |- + --|*|1 + tan |- + --||*|1 + tan |- + ----||*(1 - sin(a))*cot|- + --|
    \4   8 / \        \2   4 // \        \4    8  //                 \4   8 /
-----------------------------------------------------------------------------
                              /a   pi\    /a   3*pi\                         
                         2*tan|- + --|*tan|- + ----|                         
                              \2   4 /    \4    8  /                         
$$\frac{\left(- \sin{\left(a \right)} + 1\right) \left(\tan^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} + 1\right) \left(\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right) \sin^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} \cot{\left(\frac{a}{4} + \frac{\pi}{8} \right)}}{2 \tan{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
         2/a   pi\ /       2/a   pi\\                
    4*tan |- + --|*|1 + tan |- + --||*(1 - sin(a))   
          \4   8 / \        \2   4 //                
-----------------------------------------------------
                  2                                  
/       2/a   pi\\  /       2/a\\    2/a\    /a   pi\
|1 + tan |- + --|| *|1 - tan |-||*cos |-|*tan|- + --|
\        \4   8 //  \        \2//     \2/    \2   4 /
$$\frac{4 \cdot \left(- \sin{\left(a \right)} + 1\right) \left(\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right) \tan^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)}}{\left(- \tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(\tan^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} + 1\right)^{2} \cos^{2}{\left(\frac{a}{2} \right)} \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
                                  /        2/a   3*pi\\                     
                     (1 - sin(a))*|-1 + tan |- + ----||                     
                                  \         \4    8  //                     
----------------------------------------------------------------------------
/       2/a   3*pi\\ /        2/a\\ /        2/a   pi\\    2/a\    2/a   pi\
|1 + tan |- + ----||*|-1 + cot |-||*|-1 + cot |- + --||*sin |-|*sin |- + --|
\        \4    8  // \         \2// \         \4   8 //     \2/     \4   8 /
$$\frac{\left(- \sin{\left(a \right)} + 1\right) \left(\tan^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} - 1\right)}{\left(\tan^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} + 1\right) \left(\cot^{2}{\left(\frac{a}{2} \right)} - 1\right) \left(\cot^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} - 1\right) \sin^{2}{\left(\frac{a}{2} \right)} \sin^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)}}$$
                         /         4/a\\             
                         |    4*sin |-||             
                       2 |          \2/|             
 (-1 + cos(a) + sin(a)) *|1 + ---------|*(1 + sin(a))
                         |        2    |             
                         \     sin (a) /             
-----------------------------------------------------
/         4/a\\                                      
|    4*sin |-||                                      
|          \2/| /1               2   cos(2*a)\       
|1 - ---------|*|- + (1 - cos(a))  - --------|*cos(a)
|        2    | \2                      2    /       
\     sin (a) /                                      
$$\frac{\left(\frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1\right) \left(\sin{\left(a \right)} + 1\right) \left(\sin{\left(a \right)} + \cos{\left(a \right)} - 1\right)^{2}}{\left(- \frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1\right) \left(\left(- \cos{\left(a \right)} + 1\right)^{2} - \frac{\cos{\left(2 a \right)}}{2} + \frac{1}{2}\right) \cos{\left(a \right)}}$$
/    //     0       for a mod pi = 0\\ //     1       for a mod 2*pi = 0\            
|    ||                             || ||                               |            
|    ||       /a\                   || ||       2/a\                    |            
|    ||  2*tan|-|                   || ||1 + tan |-|                    |    /a   pi\
|1 - |<       \2/                   ||*|<        \2/                    |*tan|- + --|
|    ||-----------     otherwise    || ||-----------      otherwise     |    \2   4 /
|    ||       2/a\                  || ||       2/a\                    |            
|    ||1 + tan |-|                  || ||1 - tan |-|                    |            
\    \\        \2/                  // \\        \2/                    /            
$$\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \tan{\left(\frac{a}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\tan^{2}{\left(\frac{a}{2} \right)} + 1}{- \tan^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}$$
/    //     0       for a mod pi = 0\\ //     1        for a mod 2*pi = 0\
|    ||                             || ||                                |
|    ||       /a\                   || ||       2/a\                     |
|    ||  2*cot|-|                   || ||1 + cot |-|                     |
|1 - |<       \2/                   ||*|<        \2/                     |
|    ||-----------     otherwise    || ||------------      otherwise     |
|    ||       2/a\                  || ||        2/a\                    |
|    ||1 + cot |-|                  || ||-1 + cot |-|                    |
\    \\        \2/                  // \\         \2/                    /
--------------------------------------------------------------------------
                                  /a   pi\                                
                               cot|- + --|                                
                                  \2   4 /                                
$$\frac{\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} + 1}{\cot^{2}{\left(\frac{a}{2} \right)} - 1} & \text{otherwise} \end{cases}\right)}{\cot{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
               /         4/a\\ /               2/a\       \
               |    4*sin |-|| |          4*sin |-|       |
     2/a   pi\ |          \2/| |                \2/       |
2*sin |- + --|*|1 + ---------|*|1 - ----------------------|
      \2   4 / |        2    | |    /         4/a\\       |
               \     sin (a) / |    |    4*sin |-||       |
                               |    |          \2/|       |
                               |    |1 + ---------|*sin(a)|
                               |    |        2    |       |
                               \    \     sin (a) /       /
-----------------------------------------------------------
                   /         4/a\\                         
                   |    4*sin |-||                         
                   |          \2/|                         
                   |1 - ---------|*cos(a)                  
                   |        2    |                         
                   \     sin (a) /                         
$$\frac{2 \cdot \left(1 - \frac{4 \sin^{2}{\left(\frac{a}{2} \right)}}{\left(\frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1\right) \sin{\left(a \right)}}\right) \left(\frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1\right) \sin^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\left(- \frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1\right) \cos{\left(a \right)}}$$
                                        /           /a\ \            
                                        |      2*cot|-| |            
/       2/a   pi\\ /       2/a   3*pi\\ |           \2/ |    /a   pi\
|1 + tan |- + --||*|1 + tan |- + ----||*|1 - -----------|*cot|- + --|
\        \2   4 // \        \4    8  // |           2/a\|    \4   8 /
                                        |    1 + cot |-||            
                                        \            \2//            
---------------------------------------------------------------------
              /       2/a   pi\\    /a   pi\    /a   3*pi\           
            2*|1 + cot |- + --||*tan|- + --|*tan|- + ----|           
              \        \4   8 //    \2   4 /    \4    8  /           
$$\frac{\left(1 - \frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1}\right) \left(\tan^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} + 1\right) \left(\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right) \cot{\left(\frac{a}{4} + \frac{\pi}{8} \right)}}{2 \left(\cot^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} + 1\right) \tan{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
                                                /           /a\ \
                                                |      2*tan|-| |
     2/a   pi\ /       2/a\\ /       2/a   pi\\ |           \2/ |
4*tan |- + --|*|1 + tan |-||*|1 + tan |- + --||*|1 - -----------|
      \4   8 / \        \2// \        \2   4 // |           2/a\|
                                                |    1 + tan |-||
                                                \            \2//
-----------------------------------------------------------------
                            2                                    
          /       2/a   pi\\  /       2/a\\    /a   pi\          
          |1 + tan |- + --|| *|1 - tan |-||*tan|- + --|          
          \        \4   8 //  \        \2//    \2   4 /          
$$\frac{4 \cdot \left(1 - \frac{2 \tan{\left(\frac{a}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} \right)} + 1}\right) \left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right) \tan^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)}}{\left(- \tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(\tan^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} + 1\right)^{2} \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
                                                //     1        for a mod 2*pi = 0\            
                                                ||                                |            
/    //         0            for a mod pi = 0\\ ||       1                        |            
|    ||                                      || ||1 + -------                     |            
|    ||         2                            || ||       2/a\                     |            
|    ||--------------------     otherwise    || ||    tan |-|                     |    /a   pi\
|1 - |
            
$$\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2}{\left(1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} \right)}}\right) \tan{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} \right)}}}{-1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} \right)}}} & \text{otherwise} \end{cases}\right) \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}$$
                                                     //             1               for a mod 2*pi = 0\            
/    //            0              for a mod pi = 0\\ ||                                               |            
|    ||                                           || ||/  1     for a mod 2*pi = 0                    |    /a   pi\
|1 - |
            
$$\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\cos{\left(a \right)}} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right) \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}$$
                                       //                     a             \
                                       ||       1         for - mod 2*pi = 0|
/    //     0       for a mod pi = 0\\ ||                     2             |
|    ||                             || ||                                   |
|    ||       /a\                   || ||              2                    |
|    ||  2*cot|-|                   || || /       2/a\\                     |
|1 - |<       \2/                   ||*|< |1 + cot |-||                     |
|    ||-----------     otherwise    || || \        \4//                     |
|    ||       2/a\                  || ||---------------      otherwise     |
|    ||1 + cot |-|                  || ||              2                    |
\    \\        \2/                  // ||/        2/a\\                     |
                                       |||-1 + cot |-||                     |
                                       \\\         \4//                     /
-----------------------------------------------------------------------------
                                             2                               
                                /       1   \                                
                                |-1 + ------|                                
                                |        /a\|                                
                                |     cot|-||                                
                                \        \2//                                
$$\frac{\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: \frac{a}{2} \bmod 2 \pi = 0 \\\frac{\left(\cot^{2}{\left(\frac{a}{4} \right)} + 1\right)^{2}}{\left(\cot^{2}{\left(\frac{a}{4} \right)} - 1\right)^{2}} & \text{otherwise} \end{cases}\right)}{\left(-1 + \frac{1}{\cot{\left(\frac{a}{2} \right)}}\right)^{2}}$$
                                                       /    /       2/a   pi\\             \
                                                       |    |1 - cot |- + --||*(1 + sin(a))|
   2/a   3*pi\ /       2/a   pi\\ /       2/a   3*pi\\ |    \        \2   4 //             |
sin |- + ----|*|1 + tan |- + --||*|1 - cot |- + ----||*|1 - -------------------------------|
    \4    8  / \        \4   8 // \        \4    8  // \                   2               /
--------------------------------------------------------------------------------------------
                          /       2/a\\ /       2/a   pi\\    2/a\                          
                          |1 - tan |-||*|1 - tan |- + --||*cos |-|                          
                          \        \2// \        \4   8 //     \2/                          
$$\frac{\left(- \cot^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} + 1\right) \left(- \frac{\left(- \cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right) \left(\sin{\left(a \right)} + 1\right)}{2} + 1\right) \left(\tan^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} + 1\right) \sin^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)}}{\left(- \tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(- \tan^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} + 1\right) \cos^{2}{\left(\frac{a}{2} \right)}}$$
                                 /            2/a   pi\\                      
                                 |    -1 + tan |- + --||                      
/       2/a\\ /       2/a   pi\\ |             \2   4 /| /        2/a   3*pi\\
|1 + cot |-||*|1 + cot |- + --||*|1 - -----------------|*|-1 + tan |- + ----||
\        \2// \        \4   8 // |            2/a   pi\| \         \4    8  //
                                 |     1 + tan |- + --||                      
                                 \             \2   4 //                      
------------------------------------------------------------------------------
           /       2/a   3*pi\\ /        2/a\\ /        2/a   pi\\            
           |1 + tan |- + ----||*|-1 + cot |-||*|-1 + cot |- + --||            
           \        \4    8  // \         \2// \         \4   8 //            
$$\frac{\left(- \frac{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} - 1}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1} + 1\right) \left(\tan^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} - 1\right) \left(\cot^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(\cot^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} + 1\right)}{\left(\tan^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} + 1\right) \left(\cot^{2}{\left(\frac{a}{2} \right)} - 1\right) \left(\cot^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} - 1\right)}$$
                                                      /           2/a   pi\\
                                                      |    1 - cot |- + --||
/       2/a\\ /       2/a   pi\\ /       2/a   3*pi\\ |            \2   4 /|
|1 + tan |-||*|1 + tan |- + --||*|1 - cot |- + ----||*|1 - ----------------|
\        \2// \        \4   8 // \        \4    8  // |           2/a   pi\|
                                                      |    1 + cot |- + --||
                                                      \            \2   4 //
----------------------------------------------------------------------------
           /       2/a   3*pi\\ /       2/a\\ /       2/a   pi\\            
           |1 + cot |- + ----||*|1 - tan |-||*|1 - tan |- + --||            
           \        \4    8  // \        \2// \        \4   8 //            
$$\frac{\left(- \cot^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} + 1\right) \left(- \frac{- \cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1}{\cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1} + 1\right) \left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(\tan^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} + 1\right)}{\left(- \tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(- \tan^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} + 1\right) \left(\cot^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} + 1\right)}$$
/       2/a   pi\\ /               /a   pi\      \            
|    cos |- - --|| |          2*cos|- - --|      |            
|        \2   2 /| |               \2   2 /      |    /a   pi\
|1 + ------------|*|1 - -------------------------|*cos|- - --|
|         2/a\   | |    /       2/a   pi\\       |    \2   4 /
|      cos |-|   | |    |    cos |- - --||       |            
\          \2/   / |    |        \2   2 /|    /a\|            
                   |    |1 + ------------|*cos|-||            
                   |    |         2/a\   |    \2/|            
                   |    |      cos |-|   |       |            
                   \    \          \2/   /       /            
--------------------------------------------------------------
                /       2/a   pi\\                            
                |    cos |- - --||                            
                |        \2   2 /|    /a   pi\                
                |1 - ------------|*cos|- + --|                
                |         2/a\   |    \2   4 /                
                |      cos |-|   |                            
                \          \2/   /                            
$$\frac{\left(1 + \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}\right) \left(1 - \frac{2 \cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}\right) \cos{\left(\frac{a}{2} \right)}}\right) \cos{\left(\frac{a}{2} - \frac{\pi}{4} \right)}}{\left(1 - \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}\right) \cos{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
/         2/a\   \ /                    /a\           \            
|      sec |-|   | |               2*sec|-|           |            
|          \2/   | |                    \2/           |    /a   pi\
|1 + ------------|*|1 - ------------------------------|*sec|- + --|
|       2/a   pi\| |    /         2/a\   \            |    \2   4 /
|    sec |- - --|| |    |      sec |-|   |            |            
\        \2   2 // |    |          \2/   |    /a   pi\|            
                   |    |1 + ------------|*sec|- - --||            
                   |    |       2/a   pi\|    \2   2 /|            
                   |    |    sec |- - --||            |            
                   \    \        \2   2 //            /            
-------------------------------------------------------------------
                   /         2/a\   \                              
                   |      sec |-|   |                              
                   |          \2/   |    /a   pi\                  
                   |1 - ------------|*sec|- - --|                  
                   |       2/a   pi\|    \2   4 /                  
                   |    sec |- - --||                              
                   \        \2   2 //                              
$$\frac{\left(1 - \frac{2 \sec{\left(\frac{a}{2} \right)}}{\left(\frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}\right) \left(\frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \sec{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\left(- \frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \sec{\left(\frac{a}{2} - \frac{\pi}{4} \right)}}$$
/       2/pi   a\\ /               /pi   a\      \              
|    csc |-- - -|| |          2*csc|-- - -|      |              
|        \2    2/| |               \2    2/      |    /  a   pi\
|1 + ------------|*|1 - -------------------------|*csc|- - + --|
|         2/a\   | |    /       2/pi   a\\       |    \  2   4 /
|      csc |-|   | |    |    csc |-- - -||       |              
\          \2/   / |    |        \2    2/|    /a\|              
                   |    |1 + ------------|*csc|-||              
                   |    |         2/a\   |    \2/|              
                   |    |      csc |-|   |       |              
                   \    \          \2/   /       /              
----------------------------------------------------------------
                 /       2/pi   a\\                             
                 |    csc |-- - -||                             
                 |        \2    2/|    /a   pi\                 
                 |1 - ------------|*csc|- + --|                 
                 |         2/a\   |    \2   4 /                 
                 |      csc |-|   |                             
                 \          \2/   /                             
$$\frac{\left(1 + \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}\right) \left(1 - \frac{2 \csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\left(1 + \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}\right) \csc{\left(\frac{a}{2} \right)}}\right) \csc{\left(- \frac{a}{2} + \frac{\pi}{4} \right)}}{\left(1 - \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}\right) \csc{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
/    //             0                for a mod pi = 0\\                                                              
|    ||                                              ||                                                              
|    ||          2*sin(a)                            ||              //            1              for a mod 2*pi = 0\
|    ||----------------------------     otherwise    ||              ||                                             |
|    ||             /        2    \                  ||              ||             2      2                        |
|1 - |<             |     sin (a) |                  ||*(1 + sin(a))*|< (1 - cos(a))  + sin (a)                     |
|    ||(1 - cos(a))*|1 + ---------|                  ||              ||-------------------------      otherwise     |
|    ||             |         4/a\|                  ||              ||          2                                  |
|    ||             |    4*sin |-||                  ||              \\-2 + 2*sin (a) + 2*cos(a)                    /
|    ||             \          \2//                  ||                                                              
\    \\                                              //                                                              
---------------------------------------------------------------------------------------------------------------------
                                                        cos(a)                                                       
$$\frac{\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \sin{\left(a \right)}}{\left(1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}\right) \left(- \cos{\left(a \right)} + 1\right)} & \text{otherwise} \end{cases}\right) + 1\right) \left(\sin{\left(a \right)} + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\left(- \cos{\left(a \right)} + 1\right)^{2} + \sin^{2}{\left(a \right)}}{2 \sin^{2}{\left(a \right)} + 2 \cos{\left(a \right)} - 2} & \text{otherwise} \end{cases}\right)}{\cos{\left(a \right)}}$$
/    //              0                 for a mod pi = 0\\ //                1                  for a mod 2*pi = 0\
|    ||                                                || ||                                                     |
|    ||/     0       for a mod pi = 0                  || ||/     1        for a mod 2*pi = 0                    |
|    |||                                               || |||                                                    |
|    |||       /a\                                     || |||       2/a\                                         |
|1 - |<|  2*cot|-|                                     ||*|<|1 + cot |-|                                         |
|    ||<       \2/                        otherwise    || ||<        \2/                           otherwise     |
|    |||-----------     otherwise                      || |||------------      otherwise                         |
|    |||       2/a\                                    || |||        2/a\                                        |
|    |||1 + cot |-|                                    || |||-1 + cot |-|                                        |
\    \\\        \2/                                    // \\\         \2/                                        /
------------------------------------------------------------------------------------------------------------------
                                                      /a   pi\                                                    
                                                   cot|- + --|                                                    
                                                      \2   4 /                                                    
$$\frac{\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} + 1}{\cot^{2}{\left(\frac{a}{2} \right)} - 1} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right)}{\cot{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
                                                                  //      1         for a mod 2*pi = 0\
                                                                  ||                                  |
               /    //           0             for a mod pi = 0\\ ||        2                         |
               |    ||                                         || ||     sin (a)                      |
               |    ||         sin(a)                          || ||1 + ---------                     |
               |    ||-----------------------     otherwise    || ||         4/a\                     |
     2/a   pi\ |    ||/        2    \                          || ||    4*sin |-|                     |
2*sin |- + --|*|1 - |<|     sin (a) |    2/a\                  ||*|<          \2/                     |
      \2   4 / |    |||1 + ---------|*sin |-|                  || ||--------------      otherwise     |
               |    |||         4/a\|     \2/                  || ||         2                        |
               |    |||    4*sin |-||                          || ||      sin (a)                     |
               |    ||\          \2//                          || ||-1 + ---------                    |
               \    \\                                         // ||          4/a\                    |
                                                                  ||     4*sin |-|                    |
                                                                  \\           \2/                    /
-------------------------------------------------------------------------------------------------------
                                                 cos(a)                                                
$$\frac{2 \cdot \left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{\sin{\left(a \right)}}{\left(1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}\right) \sin^{2}{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}}{-1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}} & \text{otherwise} \end{cases}\right) \sin^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\cos{\left(a \right)}}$$
                                                          //        1          for a mod 2*pi = 0\            
                                                          ||                                     |            
/    //              0                 for a mod pi = 0\\ ||          2/a\                       |            
|    ||                                                || ||       cos |-|                       |            
|    ||                /a\                             || ||           \2/                       |            
|    ||           2*cos|-|                             || || 1 + ------------                    |            
|    ||                \2/                             || ||        2/a   pi\                    |            
|    ||------------------------------     otherwise    || ||     cos |- - --|                    |    /a   pi\
|1 - |
            
$$\frac{\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cos{\left(\frac{a}{2} \right)}}{\left(\frac{\cos^{2}{\left(\frac{a}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\frac{\cos^{2}{\left(\frac{a}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1}{\frac{\cos^{2}{\left(\frac{a}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} - 1} & \text{otherwise} \end{cases}\right) \cos{\left(\frac{a}{2} - \frac{\pi}{4} \right)}}{\cos{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
                                                     //        1          for a mod 2*pi = 0\            
                                                     ||                                     |            
/    //            0              for a mod pi = 0\\ ||        2/a   pi\                    |            
|    ||                                           || ||     sec |- - --|                    |            
|    ||           /a   pi\                        || ||         \2   2 /                    |            
|    ||      2*sec|- - --|                        || || 1 + ------------                    |            
|    ||           \2   2 /                        || ||          2/a\                       |            
|    ||-------------------------     otherwise    || ||       sec |-|                       |    /a   pi\
|1 - |
            
$$\frac{\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} \right)}}\right) \sec{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1 + \frac{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} \right)}}}{-1 + \frac{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} \right)}}} & \text{otherwise} \end{cases}\right) \sec{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\sec{\left(\frac{a}{2} - \frac{\pi}{4} \right)}}$$
                                                          //        1          for a mod 2*pi = 0\              
                                                          ||                                     |              
/    //              0                 for a mod pi = 0\\ ||          2/a\                       |              
|    ||                                                || ||       csc |-|                       |              
|    ||                /a\                             || ||           \2/                       |              
|    ||           2*csc|-|                             || || 1 + ------------                    |              
|    ||                \2/                             || ||        2/pi   a\                    |              
|    ||------------------------------     otherwise    || ||     csc |-- - -|                    |    /  a   pi\
|1 - |
            
$$\frac{\left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \csc{\left(\frac{a}{2} \right)}}{\left(\frac{\csc^{2}{\left(\frac{a}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} + 1\right) \csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\frac{\csc^{2}{\left(\frac{a}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} + 1}{\frac{\csc^{2}{\left(\frac{a}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} - 1} & \text{otherwise} \end{cases}\right) \csc{\left(- \frac{a}{2} + \frac{\pi}{4} \right)}}{\csc{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}$$
                                                                                                                          //                    /    pi\           \
                                                                                                                          ||     zoo        for |a + --| mod pi = 0|
                                    //                                 /a   pi\           \                               ||                    \    2 /           |
                                    ||             0               for |- + --| mod pi = 0| //  1     for a mod 2*pi = 0\ ||                                       |
  /    //  0     for a mod pi = 0\\ ||                                 \2   4 /           | ||                          | ||    /a   pi\                           |
2*|1 - |<                        ||*|<                                                    |*|<  1                       |*|< tan|- + --|                           |
  \    \\sin(a)     otherwise    // ||     2/a   pi\    4/a   pi\                         | ||------      otherwise     | ||    \2   4 /                           |
                                    ||4*cot |- + --|*sin |- + --|         otherwise       | \\cos(a)                    / ||--------------         otherwise       |
                                    \\      \4   8 /     \4   8 /                         /                               ||     2/a   pi\                         |
                                                                                                                          ||2*sin |- + --|                         |
                                                                                                                          \\      \2   4 /                         /
$$2 \cdot \left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 0 & \text{for}\: \left(\frac{a}{2} + \frac{\pi}{4}\right) \bmod \pi = 0 \\4 \sin^{4}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} \cot^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\cos{\left(a \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} \tilde{\infty} & \text{for}\: \left(a + \frac{\pi}{2}\right) \bmod \pi = 0 \\\frac{\tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{2 \sin^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)}} & \text{otherwise} \end{cases}\right)$$
                                                                                                                                          //                         /a   7*pi\             \
                                                                           //                                      /a   pi\             \ ||         1           for |- + ----| mod 2*pi = 0|
                                                                           ||               1                  for |- + --| mod 2*pi = 0| ||                         \2    4  /             |
/    //            /    3*pi\             \\ //  1     for a mod 2*pi = 0\ ||                                      \2   4 /             | ||                                                |
|    ||  1     for |a + ----| mod 2*pi = 0|| ||                          | ||                                                           | ||        2/a   3*pi\                             |
|1 - |<            \     2  /             ||*|<  1                       |*|<               1                                           |*|<-1 + tan |- + ----|                             |
|    ||                                   || ||------      otherwise     | ||--------------------------------          otherwise        | ||         \4    8  /                             |
\    \\sin(a)           otherwise         // \\cos(a)                    / ||/        2/a   pi\\    2/a   pi\                           | ||-------------------           otherwise         |
                                                                           |||-1 + cot |- + --||*sin |- + --|                           | ||        2/a   3*pi\                             |
                                                                           \\\         \4   8 //     \4   8 /                           / || 1 + tan |- + ----|                             |
                                                                                                                                          \\         \4    8  /                             /
$$\left(\left(- \begin{cases} 1 & \text{for}\: \left(a + \frac{3 \pi}{2}\right) \bmod 2 \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\cos{\left(a \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: \left(\frac{a}{2} + \frac{\pi}{4}\right) \bmod 2 \pi = 0 \\\frac{1}{\left(\cot^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} - 1\right) \sin^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: \left(\frac{a}{2} + \frac{7 \pi}{4}\right) \bmod 2 \pi = 0 \\\frac{\tan^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} - 1}{\tan^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
                                         //                         /a   pi\           \                                                                                 
                                         ||         0           for |- + --| mod pi = 0|                                     //                      /    pi\           \
  /    //     0       for a mod pi = 0\\ ||                         \2   4 /           | //     1        for a mod 2*pi = 0\ ||      zoo         for |a + --| mod pi = 0|
  |    ||                             || ||                                            | ||                                | ||                      \    2 /           |
  |    ||       /a\                   || ||        2/a   pi\                           | ||       2/a\                     | ||                                         |
  |    ||  2*cot|-|                   || ||   4*cot |- + --|                           | ||1 + cot |-|                     | ||       2/a   pi\                         |
2*|1 - |<       \2/                   ||*|<         \4   8 /                           |*|<        \2/                     |*|<1 + cot |- + --|                         |
  |    ||-----------     otherwise    || ||-------------------         otherwise       | ||------------      otherwise     | ||        \2   4 /                         |
  |    ||       2/a\                  || ||                  2                         | ||        2/a\                    | ||----------------         otherwise       |
  |    ||1 + cot |-|                  || ||/       2/a   pi\\                          | ||-1 + cot |-|                    | ||      /a   pi\                           |
  \    \\        \2/                  // |||1 + cot |- + --||                          | \\         \2/                    / || 2*cot|- + --|                           |
                                         ||\        \4   8 //                          |                                     \\      \2   4 /                           /
                                         \\                                            /                                                                                 
$$2 \cdot \left(\left(- \begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 0 & \text{for}\: \left(\frac{a}{2} + \frac{\pi}{4}\right) \bmod \pi = 0 \\\frac{4 \cot^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)}}{\left(\cot^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} + 1\right)^{2}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} + 1}{\cot^{2}{\left(\frac{a}{2} \right)} - 1} & \text{otherwise} \end{cases}\right) \left(\begin{cases} \tilde{\infty} & \text{for}\: \left(a + \frac{\pi}{2}\right) \bmod \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1}{2 \cot{\left(\frac{a}{2} + \frac{\pi}{4} \right)}} & \text{otherwise} \end{cases}\right)$$
/    //                       /    3*pi\             \\                                     //                       /a   pi\             \ //                         /a   7*pi\             \
|    ||        1          for |a + ----| mod 2*pi = 0|| //     1        for a mod 2*pi = 0\ ||        1          for |- + --| mod 2*pi = 0| ||         1           for |- + ----| mod 2*pi = 0|
|    ||                       \     2  /             || ||                                | ||                       \2   4 /             | ||                         \2    4  /             |
|    ||                                              || ||       2/a\                     | ||                                            | ||                                                |
|    ||        2/a   pi\                             || ||1 + cot |-|                     | ||        2/a   pi\                           | ||        2/a   3*pi\                             |
|1 - |<-1 + tan |- + --|                             ||*|<        \2/                     |*|< 1 + cot |- + --|                           |*|<-1 + tan |- + ----|                             |
|    ||         \2   4 /                             || ||------------      otherwise     | ||         \4   8 /                           | ||         \4    8  /                             |
|    ||-----------------           otherwise         || ||        2/a\                    | ||-----------------          otherwise        | ||-------------------           otherwise         |
|    ||        2/a   pi\                             || ||-1 + cot |-|                    | ||        2/a   pi\                           | ||        2/a   3*pi\                             |
|    || 1 + tan |- + --|                             || \\         \2/                    / ||-1 + cot |- + --|                           | || 1 + tan |- + ----|                             |
\    \\         \2   4 /                             //                                     \\         \4   8 /                           / \\         \4    8  /                             /
$$\left(\left(- \begin{cases} 1 & \text{for}\: \left(a + \frac{3 \pi}{2}\right) \bmod 2 \pi = 0 \\\frac{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} - 1}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1} & \text{otherwise} \end{cases}\right) + 1\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} + 1}{\cot^{2}{\left(\frac{a}{2} \right)} - 1} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: \left(\frac{a}{2} + \frac{\pi}{4}\right) \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} + 1}{\cot^{2}{\left(\frac{a}{4} + \frac{\pi}{8} \right)} - 1} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: \left(\frac{a}{2} + \frac{7 \pi}{4}\right) \bmod 2 \pi = 0 \\\frac{\tan^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} - 1}{\tan^{2}{\left(\frac{a}{4} + \frac{3 \pi}{8} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
(1 - Piecewise((1, Mod(a + 3*pi/2 = 2*pi, 0)), ((-1 + tan(a/2 + pi/4)^2)/(1 + tan(a/2 + pi/4)^2), True)))*Piecewise((1, Mod(a = 2*pi, 0)), ((1 + cot(a/2)^2)/(-1 + cot(a/2)^2), True))*Piecewise((1, Mod(a/2 + pi/4 = 2*pi, 0)), ((1 + cot(a/4 + pi/8)^2)/(-1 + cot(a/4 + pi/8)^2), True))*Piecewise((1, Mod(a/2 + 7*pi/4 = 2*pi, 0)), ((-1 + tan(a/4 + 3*pi/8)^2)/(1 + tan(a/4 + 3*pi/8)^2), True))
Численный ответ [src]
(1.0 - sin(a))*tan(pi/4 + a/2)/cos(a)
(1.0 - sin(a))*tan(pi/4 + a/2)/cos(a)