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Общий знаменатель (sin(a)/(1+cos(a)))-(sin(a)/(1-cos(a)))

Выражение, которое надо упростить:

Решение

Вы ввели [src]
  sin(a)       sin(a)  
---------- - ----------
1 + cos(a)   1 - cos(a)
$$\frac{\sin{\left(a \right)}}{\cos{\left(a \right)} + 1} - \frac{\sin{\left(a \right)}}{- \cos{\left(a \right)} + 1}$$
sin(a)/(1 + cos(a)) - sin(a)/(1 - cos(a))
Общее упрощение [src]
 -2   
------
tan(a)
$$- \frac{2}{\tan{\left(a \right)}}$$
-2/tan(a)
Собрать выражение [src]
  sin(a)        sin(a)  
---------- + -----------
1 + cos(a)   -1 + cos(a)
$$\frac{\sin{\left(a \right)}}{\cos{\left(a \right)} + 1} + \frac{\sin{\left(a \right)}}{\cos{\left(a \right)} - 1}$$
sin(a)/(1 + cos(a)) + sin(a)/(-1 + cos(a))
Общий знаменатель [src]
2*cos(a)*sin(a)
---------------
          2    
  -1 + cos (a) 
$$\frac{2 \sin{\left(a \right)} \cos{\left(a \right)}}{\cos^{2}{\left(a \right)} - 1}$$
2*cos(a)*sin(a)/(-1 + cos(a)^2)
Тригонометрическая часть [src]
-2*cot(a)
$$- 2 \cot{\left(a \right)}$$
 -2   
------
tan(a)
$$- \frac{2}{\tan{\left(a \right)}}$$
-sin(2*a) 
----------
    2     
 sin (a)  
$$- \frac{\sin{\left(2 a \right)}}{\sin^{2}{\left(a \right)}}$$
 -2*cos(a) 
-----------
   /    pi\
cos|a - --|
   \    2 /
$$- \frac{2 \cos{\left(a \right)}}{\cos{\left(a - \frac{\pi}{2} \right)}}$$
      /    pi\
-2*sec|a - --|
      \    2 /
--------------
    sec(a)    
$$- \frac{2 \sec{\left(a - \frac{\pi}{2} \right)}}{\sec{\left(a \right)}}$$
 -2*csc(a) 
-----------
   /pi    \
csc|-- - a|
   \2     /
$$- \frac{2 \csc{\left(a \right)}}{\csc{\left(- a + \frac{\pi}{2} \right)}}$$
            /a\
2*cos(a)*tan|-|
            \2/
---------------
  -1 + cos(a)  
$$\frac{2 \cos{\left(a \right)} \tan{\left(\frac{a}{2} \right)}}{\cos{\left(a \right)} - 1}$$
     sin(a)            sin(a)    
--------------- - ---------------
       /    pi\          /    pi\
1 + sin|a + --|   1 - sin|a + --|
       \    2 /          \    2 /
$$\frac{\sin{\left(a \right)}}{\sin{\left(a + \frac{\pi}{2} \right)} + 1} - \frac{\sin{\left(a \right)}}{- \sin{\left(a + \frac{\pi}{2} \right)} + 1}$$
   /    pi\      /    pi\
cos|a - --|   cos|a - --|
   \    2 /      \    2 /
----------- - -----------
 1 + cos(a)    1 - cos(a)
$$\frac{\cos{\left(a - \frac{\pi}{2} \right)}}{\cos{\left(a \right)} + 1} - \frac{\cos{\left(a - \frac{\pi}{2} \right)}}{- \cos{\left(a \right)} + 1}$$
         1                     1         
------------------- - -------------------
/      1   \          /      1   \       
|1 + ------|*csc(a)   |1 - ------|*csc(a)
\    sec(a)/          \    sec(a)/       
$$\frac{1}{\left(1 + \frac{1}{\sec{\left(a \right)}}\right) \csc{\left(a \right)}} - \frac{1}{\left(1 - \frac{1}{\sec{\left(a \right)}}\right) \csc{\left(a \right)}}$$
           1                          1            
------------------------ - ------------------------
/      1   \    /    pi\   /      1   \    /    pi\
|1 + ------|*sec|a - --|   |1 - ------|*sec|a - --|
\    sec(a)/    \    2 /   \    sec(a)/    \    2 /
$$\frac{1}{\left(1 + \frac{1}{\sec{\left(a \right)}}\right) \sec{\left(a - \frac{\pi}{2} \right)}} - \frac{1}{\left(1 - \frac{1}{\sec{\left(a \right)}}\right) \sec{\left(a - \frac{\pi}{2} \right)}}$$
           1                          1            
------------------------ - ------------------------
/         1     \          /         1     \       
|1 + -----------|*csc(a)   |1 - -----------|*csc(a)
|       /pi    \|          |       /pi    \|       
|    csc|-- - a||          |    csc|-- - a||       
\       \2     //          \       \2     //       
$$\frac{1}{\left(1 + \frac{1}{\csc{\left(- a + \frac{\pi}{2} \right)}}\right) \csc{\left(a \right)}} - \frac{1}{\left(1 - \frac{1}{\csc{\left(- a + \frac{\pi}{2} \right)}}\right) \csc{\left(a \right)}}$$
           1                          1            
------------------------ - ------------------------
/      1   \    /pi    \   /      1   \    /pi    \
|1 + ------|*sec|-- - a|   |1 - ------|*sec|-- - a|
\    sec(a)/    \2     /   \    sec(a)/    \2     /
$$\frac{1}{\left(1 + \frac{1}{\sec{\left(a \right)}}\right) \sec{\left(- a + \frac{\pi}{2} \right)}} - \frac{1}{\left(1 - \frac{1}{\sec{\left(a \right)}}\right) \sec{\left(- a + \frac{\pi}{2} \right)}}$$
              1                               1              
----------------------------- - -----------------------------
/         1     \               /         1     \            
|1 + -----------|*csc(pi - a)   |1 - -----------|*csc(pi - a)
|       /pi    \|               |       /pi    \|            
|    csc|-- - a||               |    csc|-- - a||            
\       \2     //               \       \2     //            
$$\frac{1}{\left(1 + \frac{1}{\csc{\left(- a + \frac{\pi}{2} \right)}}\right) \csc{\left(- a + \pi \right)}} - \frac{1}{\left(1 - \frac{1}{\csc{\left(- a + \frac{\pi}{2} \right)}}\right) \csc{\left(- a + \pi \right)}}$$
/       2/a   pi\\                /       2/a   pi\\             
|1 - cot |- + --||*(1 + sin(a))   |1 - cot |- + --||*(1 + sin(a))
\        \2   4 //                \        \2   4 //             
------------------------------- - -------------------------------
         2*(1 + cos(a))                    2*(1 - cos(a))        
$$\frac{\left(- \cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right) \left(\sin{\left(a \right)} + 1\right)}{2 \left(\cos{\left(a \right)} + 1\right)} - \frac{\left(- \cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right) \left(\sin{\left(a \right)} + 1\right)}{2 \cdot \left(- \cos{\left(a \right)} + 1\right)}$$
                   /a\                               /a\           
              2*tan|-|                          2*tan|-|           
                   \2/                               \2/           
- ------------------------------- + -------------------------------
                /           2/a\\                 /           2/a\\
                |    1 - tan |-||                 |    1 - tan |-||
  /       2/a\\ |            \2/|   /       2/a\\ |            \2/|
  |1 + tan |-||*|1 - -----------|   |1 + tan |-||*|1 + -----------|
  \        \2// |           2/a\|   \        \2// |           2/a\|
                |    1 + tan |-||                 |    1 + tan |-||
                \            \2//                 \            \2//
$$\frac{2 \tan{\left(\frac{a}{2} \right)}}{\left(\frac{- \tan^{2}{\left(\frac{a}{2} \right)} + 1}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} + 1\right) \left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right)} - \frac{2 \tan{\left(\frac{a}{2} \right)}}{\left(- \frac{- \tan^{2}{\left(\frac{a}{2} \right)} + 1}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} + 1\right) \left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right)}$$
                     /a\                                    /a\              
                2*cot|-|                               2*cot|-|              
                     \2/                                    \2/              
- ------------------------------------ + ------------------------------------
                /          /a   pi\  \                 /          /a   pi\  \
                |     2*tan|- + --|  |                 |     2*tan|- + --|  |
  /       2/a\\ |          \2   4 /  |   /       2/a\\ |          \2   4 /  |
  |1 + cot |-||*|1 - ----------------|   |1 + cot |-||*|1 + ----------------|
  \        \2// |           2/a   pi\|   \        \2// |           2/a   pi\|
                |    1 + tan |- + --||                 |    1 + tan |- + --||
                \            \2   4 //                 \            \2   4 //
$$\frac{2 \cot{\left(\frac{a}{2} \right)}}{\left(1 + \frac{2 \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1}\right) \left(\cot^{2}{\left(\frac{a}{2} \right)} + 1\right)} - \frac{2 \cot{\left(\frac{a}{2} \right)}}{\left(1 - \frac{2 \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1}\right) \left(\cot^{2}{\left(\frac{a}{2} \right)} + 1\right)}$$
                     /a\                                    /a\              
                2*tan|-|                               2*tan|-|              
                     \2/                                    \2/              
- ------------------------------------ + ------------------------------------
                /          /a   pi\  \                 /          /a   pi\  \
                |     2*tan|- + --|  |                 |     2*tan|- + --|  |
  /       2/a\\ |          \2   4 /  |   /       2/a\\ |          \2   4 /  |
  |1 + tan |-||*|1 - ----------------|   |1 + tan |-||*|1 + ----------------|
  \        \2// |           2/a   pi\|   \        \2// |           2/a   pi\|
                |    1 + tan |- + --||                 |    1 + tan |- + --||
                \            \2   4 //                 \            \2   4 //
$$\frac{2 \tan{\left(\frac{a}{2} \right)}}{\left(1 + \frac{2 \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1}\right) \left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right)} - \frac{2 \tan{\left(\frac{a}{2} \right)}}{\left(1 - \frac{2 \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1}\right) \left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right)}$$
         2/a\                                     2/a\                           
    4*sin |-|*(-1 + cos(a))                  4*sin |-|*(-1 + cos(a))             
          \2/                                      \2/                           
- ---------------------------- - ------------------------------------------------
  /   2           4/a\\          /         4/a\\                                 
  |sin (a) + 4*sin |-||*sin(a)   |    4*sin |-||                                 
  \                \2//          |          \2/| /        2              \       
                                 |1 + ---------|*\-2 + sin (a) + 2*cos(a)/*sin(a)
                                 |        2    |                                 
                                 \     sin (a) /                                 
$$- \frac{4 \left(\cos{\left(a \right)} - 1\right) \sin^{2}{\left(\frac{a}{2} \right)}}{\left(4 \sin^{4}{\left(\frac{a}{2} \right)} + \sin^{2}{\left(a \right)}\right) \sin{\left(a \right)}} - \frac{4 \left(\cos{\left(a \right)} - 1\right) \sin^{2}{\left(\frac{a}{2} \right)}}{\left(\frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1\right) \left(\sin^{2}{\left(a \right)} + 2 \cos{\left(a \right)} - 2\right) \sin{\left(a \right)}}$$
                    2                                        2                   
- -------------------------------------- + --------------------------------------
                /           1   \                        /           1   \       
                |    1 - -------|                        |    1 - -------|       
                |           2/a\|                        |           2/a\|       
                |        cot |-||                        |        cot |-||       
  /       1   \ |            \2/|    /a\   /       1   \ |            \2/|    /a\
  |1 + -------|*|1 - -----------|*cot|-|   |1 + -------|*|1 + -----------|*cot|-|
  |       2/a\| |           1   |    \2/   |       2/a\| |           1   |    \2/
  |    cot |-|| |    1 + -------|          |    cot |-|| |    1 + -------|       
  \        \2// |           2/a\|          \        \2// |           2/a\|       
                |        cot |-||                        |        cot |-||       
                \            \2//                        \            \2//       
$$\frac{2}{\left(1 + \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}\right) \left(\frac{1 - \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}} + 1\right) \cot{\left(\frac{a}{2} \right)}} - \frac{2}{\left(1 + \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}\right) \left(- \frac{1 - \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}} + 1\right) \cot{\left(\frac{a}{2} \right)}}$$
                  2/a   pi\                               2/a   pi\          
          -1 + tan |- + --|                       -1 + tan |- + --|          
                   \2   4 /                                \2   4 /          
------------------------------------- - -------------------------------------
                   /            2/a\\                      /            2/a\\
                   |    -1 + cot |-||                      |    -1 + cot |-||
/       2/a   pi\\ |             \2/|   /       2/a   pi\\ |             \2/|
|1 + tan |- + --||*|1 + ------------|   |1 + tan |- + --||*|1 - ------------|
\        \2   4 // |           2/a\ |   \        \2   4 // |           2/a\ |
                   |    1 + cot |-| |                      |    1 + cot |-| |
                   \            \2/ /                      \            \2/ /
$$\frac{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} - 1}{\left(\frac{\cot^{2}{\left(\frac{a}{2} \right)} - 1}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} + 1\right) \left(\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right)} - \frac{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} - 1}{\left(- \frac{\cot^{2}{\left(\frac{a}{2} \right)} - 1}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} + 1\right) \left(\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right)}$$
                 2/a   pi\                              2/a   pi\          
          1 - cot |- + --|                       1 - cot |- + --|          
                  \2   4 /                               \2   4 /          
------------------------------------ - ------------------------------------
                   /           2/a\\                      /           2/a\\
                   |    1 - tan |-||                      |    1 - tan |-||
/       2/a   pi\\ |            \2/|   /       2/a   pi\\ |            \2/|
|1 + cot |- + --||*|1 + -----------|   |1 + cot |- + --||*|1 - -----------|
\        \2   4 // |           2/a\|   \        \2   4 // |           2/a\|
                   |    1 + tan |-||                      |    1 + tan |-||
                   \            \2//                      \            \2//
$$\frac{- \cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1}{\left(\frac{- \tan^{2}{\left(\frac{a}{2} \right)} + 1}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} + 1\right) \left(\cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right)} - \frac{- \cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1}{\left(- \frac{- \tan^{2}{\left(\frac{a}{2} \right)} + 1}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} + 1\right) \left(\cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right)}$$
    /  0     for a mod pi = 0           /  0     for a mod pi = 0    
    <                                   <                            
    \sin(a)     otherwise               \sin(a)     otherwise        
--------------------------------- - ---------------------------------
    //  1     for a mod 2*pi = 0\       //  1     for a mod 2*pi = 0\
1 + |<                          |   1 - |<                          |
    \\cos(a)      otherwise     /       \\cos(a)      otherwise     /
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1}\right)$$
      /  0     for a mod pi = 0                /  0     for a mod pi = 0       
      <                                        <                               
      \sin(a)     otherwise                    \sin(a)     otherwise           
-------------------------------------- - --------------------------------------
    //     1       for a mod 2*pi = 0\       //     1       for a mod 2*pi = 0\
    ||                               |       ||                               |
1 + |<   /    pi\                    |   1 - |<   /    pi\                    |
    ||sin|a + --|      otherwise     |       ||sin|a + --|      otherwise     |
    \\   \    2 /                    /       \\   \    2 /                    /
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\sin{\left(a + \frac{\pi}{2} \right)} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\sin{\left(a + \frac{\pi}{2} \right)} & \text{otherwise} \end{cases}\right) + 1}\right)$$
  /     0       for a mod pi = 0      /     0       for a mod pi = 0 
  |                                   |                              
  <   /    pi\                        <   /    pi\                   
  |cos|a - --|     otherwise          |cos|a - --|     otherwise     
  \   \    2 /                        \   \    2 /                   
--------------------------------- - ---------------------------------
    //  1     for a mod 2*pi = 0\       //  1     for a mod 2*pi = 0\
1 + |<                          |   1 - |<                          |
    \\cos(a)      otherwise     /       \\cos(a)      otherwise     /
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\cos{\left(a - \frac{\pi}{2} \right)} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\cos{\left(a - \frac{\pi}{2} \right)} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1}\right)$$
/            /    3*pi\                /            /    3*pi\             
|  1     for |a + ----| mod 2*pi = 0   |  1     for |a + ----| mod 2*pi = 0
<            \     2  /                <            \     2  /             
|                                      |                                   
\sin(a)           otherwise            \sin(a)           otherwise         
------------------------------------ - ------------------------------------
     //  1     for a mod 2*pi = 0\          //  1     for a mod 2*pi = 0\  
 1 + |<                          |      1 - |<                          |  
     \\cos(a)      otherwise     /          \\cos(a)      otherwise     /  
$$\left(\frac{\begin{cases} 1 & \text{for}\: \left(a + \frac{3 \pi}{2}\right) \bmod 2 \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 1 & \text{for}\: \left(a + \frac{3 \pi}{2}\right) \bmod 2 \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1}\right)$$
  /     0       for a mod pi = 0      /     0       for a mod pi = 0 
  |                                   |                              
  |     1                             |     1                        
  <-----------     otherwise          <-----------     otherwise     
  |   /    pi\                        |   /    pi\                   
  |sec|a - --|                        |sec|a - --|                   
  \   \    2 /                        \   \    2 /                   
--------------------------------- - ---------------------------------
    //  1     for a mod 2*pi = 0\       //  1     for a mod 2*pi = 0\
    ||                          |       ||                          |
1 + |<  1                       |   1 - |<  1                       |
    ||------      otherwise     |       ||------      otherwise     |
    \\sec(a)                    /       \\sec(a)                    /
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{1}{\sec{\left(a - \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\sec{\left(a \right)}} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{1}{\sec{\left(a - \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\sec{\left(a \right)}} & \text{otherwise} \end{cases}\right) + 1}\right)$$
      /  0     for a mod pi = 0                /  0     for a mod pi = 0       
      |                                        |                               
      <  1                                     <  1                            
      |------     otherwise                    |------     otherwise           
      \csc(a)                                  \csc(a)                         
-------------------------------------- - --------------------------------------
    //     1       for a mod 2*pi = 0\       //     1       for a mod 2*pi = 0\
    ||                               |       ||                               |
    ||     1                         |       ||     1                         |
1 + |<-----------      otherwise     |   1 - |<-----------      otherwise     |
    ||   /pi    \                    |       ||   /pi    \                    |
    ||csc|-- - a|                    |       ||csc|-- - a|                    |
    \\   \2     /                    /       \\   \2     /                    /
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{1}{\csc{\left(a \right)}} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\csc{\left(- a + \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{1}{\csc{\left(a \right)}} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\csc{\left(- a + \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right) + 1}\right)$$
  /    0       for a mod pi = 0       /    0       for a mod pi = 0  
  |                                   |                              
  |1 - cos(a)                         |1 - cos(a)                    
  <----------     otherwise           <----------     otherwise      
  |     /a\                           |     /a\                      
  |  tan|-|                           |  tan|-|                      
  \     \2/                           \     \2/                      
--------------------------------- - ---------------------------------
    //  1     for a mod 2*pi = 0\       //  1     for a mod 2*pi = 0\
1 + |<                          |   1 - |<                          |
    \\cos(a)      otherwise     /       \\cos(a)      otherwise     /
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{- \cos{\left(a \right)} + 1}{\tan{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{- \cos{\left(a \right)} + 1}{\tan{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right) + 1}\right)$$
                       2/a\                                         2/a\                 
                  4*sin |-|                                    4*sin |-|                 
                        \2/                                          \2/                 
- ------------------------------------------ + ------------------------------------------
  /             4/a\\                          /             4/a\\                       
  |        4*sin |-||                          |        4*sin |-||                       
  |              \2/|                          |              \2/|                       
  |    1 - ---------| /         4/a\\          |    1 - ---------| /         4/a\\       
  |            2    | |    4*sin |-||          |            2    | |    4*sin |-||       
  |         sin (a) | |          \2/|          |         sin (a) | |          \2/|       
  |1 - -------------|*|1 + ---------|*sin(a)   |1 + -------------|*|1 + ---------|*sin(a)
  |             4/a\| |        2    |          |             4/a\| |        2    |       
  |        4*sin |-|| \     sin (a) /          |        4*sin |-|| \     sin (a) /       
  |              \2/|                          |              \2/|                       
  |    1 + ---------|                          |    1 + ---------|                       
  |            2    |                          |            2    |                       
  \         sin (a) /                          \         sin (a) /                       
$$\frac{4 \sin^{2}{\left(\frac{a}{2} \right)}}{\left(\frac{- \frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1}{\frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1} + 1\right) \left(\frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1\right) \sin{\left(a \right)}} - \frac{4 \sin^{2}{\left(\frac{a}{2} \right)}}{\left(- \frac{- \frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1}{\frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1} + 1\right) \left(\frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1\right) \sin{\left(a \right)}}$$
               /  0     for a mod pi = 0                                  /  0     for a mod pi = 0                
               <                                                          <                                        
               \sin(a)     otherwise                                      \sin(a)     otherwise                    
-------------------------------------------------------- - --------------------------------------------------------
    //                              /    pi\           \       //                              /    pi\           \
    ||           0              for |a + --| mod pi = 0|       ||           0              for |a + --| mod pi = 0|
    ||                              \    2 /           |       ||                              \    2 /           |
1 + |<                                                 |   1 - |<                                                 |
    ||                /a   pi\                         |       ||                /a   pi\                         |
    ||(1 + sin(a))*cot|- + --|         otherwise       |       ||(1 + sin(a))*cot|- + --|         otherwise       |
    \\                \2   4 /                         /       \\                \2   4 /                         /
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}}{\left(\begin{cases} 0 & \text{for}\: \left(a + \frac{\pi}{2}\right) \bmod \pi = 0 \\\left(\sin{\left(a \right)} + 1\right) \cot{\left(\frac{a}{2} + \frac{\pi}{4} \right)} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 0 & \text{for}\: \left(a + \frac{\pi}{2}\right) \bmod \pi = 0 \\\left(\sin{\left(a \right)} + 1\right) \cot{\left(\frac{a}{2} + \frac{\pi}{4} \right)} & \text{otherwise} \end{cases}\right) + 1}\right)$$
     /     0       for a mod pi = 0            /     0       for a mod pi = 0    
     |                                         |                                 
     |       /a\                               |       /a\                       
     |  2*cot|-|                               |  2*cot|-|                       
     <       \2/                               <       \2/                       
     |-----------     otherwise                |-----------     otherwise        
     |       2/a\                              |       2/a\                      
     |1 + cot |-|                              |1 + cot |-|                      
     \        \2/                              \        \2/                      
--------------------------------------- - ---------------------------------------
    //     1        for a mod 2*pi = 0\       //     1        for a mod 2*pi = 0\
    ||                                |       ||                                |
    ||        2/a\                    |       ||        2/a\                    |
    ||-1 + cot |-|                    |       ||-1 + cot |-|                    |
1 + |<         \2/                    |   1 - |<         \2/                    |
    ||------------      otherwise     |       ||------------      otherwise     |
    ||       2/a\                     |       ||       2/a\                     |
    ||1 + cot |-|                     |       ||1 + cot |-|                     |
    \\        \2/                     /       \\        \2/                     /
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} - 1}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} - 1}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) + 1}\right)$$
    /     0       for a mod pi = 0           /     0       for a mod pi = 0    
    |                                        |                                 
    |       /a\                              |       /a\                       
    |  2*tan|-|                              |  2*tan|-|                       
    <       \2/                              <       \2/                       
    |-----------     otherwise               |-----------     otherwise        
    |       2/a\                             |       2/a\                      
    |1 + tan |-|                             |1 + tan |-|                      
    \        \2/                             \        \2/                      
-------------------------------------- - --------------------------------------
    //     1       for a mod 2*pi = 0\       //     1       for a mod 2*pi = 0\
    ||                               |       ||                               |
    ||       2/a\                    |       ||       2/a\                    |
    ||1 - tan |-|                    |       ||1 - tan |-|                    |
1 + |<        \2/                    |   1 - |<        \2/                    |
    ||-----------      otherwise     |       ||-----------      otherwise     |
    ||       2/a\                    |       ||       2/a\                    |
    ||1 + tan |-|                    |       ||1 + tan |-|                    |
    \\        \2/                    /       \\        \2/                    /
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \tan{\left(\frac{a}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{- \tan^{2}{\left(\frac{a}{2} \right)} + 1}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \tan{\left(\frac{a}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{- \tan^{2}{\left(\frac{a}{2} \right)} + 1}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) + 1}\right)$$
     /            0              for a mod pi = 0             /            0              for a mod pi = 0     
     |                                                        |                                                
     
            
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right) + 1}\right)$$
/         0            for a mod pi = 0   /         0            for a mod pi = 0
|                                         |                                      
|         2                               |         2                            
|--------------------     otherwise       |--------------------     otherwise    

            
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2}{\left(1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} \right)}}\right) \tan{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{-1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} \right)}}} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2}{\left(1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} \right)}}\right) \tan{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{-1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} \right)}}} & \text{otherwise} \end{cases}\right) + 1}\right)$$
         /     0       for a mod pi = 0                     /     0       for a mod pi = 0         
         |                                                  |                                      
         |       /a\                                        |       /a\                            
         |  2*cot|-|                                        |  2*cot|-|                            
         <       \2/                                        <       \2/                            
         |-----------     otherwise                         |-----------     otherwise             
         |       2/a\                                       |       2/a\                           
         |1 + cot |-|                                       |1 + cot |-|                           
         \        \2/                                       \        \2/                           
------------------------------------------------ - ------------------------------------------------
    //                      /    pi\           \       //                      /    pi\           \
    ||       0          for |a + --| mod pi = 0|       ||       0          for |a + --| mod pi = 0|
    ||                      \    2 /           |       ||                      \    2 /           |
    ||                                         |       ||                                         |
    ||      /a   pi\                           |       ||      /a   pi\                           |
1 + |< 2*cot|- + --|                           |   1 - |< 2*cot|- + --|                           |
    ||      \2   4 /                           |       ||      \2   4 /                           |
    ||----------------         otherwise       |       ||----------------         otherwise       |
    ||       2/a   pi\                         |       ||       2/a   pi\                         |
    ||1 + cot |- + --|                         |       ||1 + cot |- + --|                         |
    \\        \2   4 /                         /       \\        \2   4 /                         /
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}}{\left(\begin{cases} 0 & \text{for}\: \left(a + \frac{\pi}{2}\right) \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 0 & \text{for}\: \left(a + \frac{\pi}{2}\right) \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1} & \text{otherwise} \end{cases}\right) + 1}\right)$$
                        /a   pi\                                           /a   pi\                  
                   2*cos|- - --|                                      2*cos|- - --|                  
                        \2   2 /                                           \2   2 /                  
- ------------------------------------------------ + ------------------------------------------------
                     /           2/a   pi\\          /           2/a   pi\\                          
                     |        cos |- - --||          |        cos |- - --||                          
                     |            \2   2 /|          |            \2   2 /|                          
                     |    1 - ------------|          |    1 - ------------|                          
  /       2/a   pi\\ |             2/a\   |          |             2/a\   | /       2/a   pi\\       
  |    cos |- - --|| |          cos |-|   |          |          cos |-|   | |    cos |- - --||       
  |        \2   2 /| |              \2/   |    /a\   |              \2/   | |        \2   2 /|    /a\
  |1 + ------------|*|1 - ----------------|*cos|-|   |1 + ----------------|*|1 + ------------|*cos|-|
  |         2/a\   | |           2/a   pi\|    \2/   |           2/a   pi\| |         2/a\   |    \2/
  |      cos |-|   | |        cos |- - --||          |        cos |- - --|| |      cos |-|   |       
  \          \2/   / |            \2   2 /|          |            \2   2 /| \          \2/   /       
                     |    1 + ------------|          |    1 + ------------|                          
                     |             2/a\   |          |             2/a\   |                          
                     |          cos |-|   |          |          cos |-|   |                          
                     \              \2/   /          \              \2/   /                          
$$\frac{2 \cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}\right) \left(\frac{1 - \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}} + 1\right) \cos{\left(\frac{a}{2} \right)}} - \frac{2 \cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}\right) \left(- \frac{1 - \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}} + 1\right) \cos{\left(\frac{a}{2} \right)}}$$
                              /a\                                                     /a\                      
                         2*sec|-|                                                2*sec|-|                      
                              \2/                                                     \2/                      
- ----------------------------------------------------- + -----------------------------------------------------
                     /             2/a\   \               /             2/a\   \                               
                     |          sec |-|   |               |          sec |-|   |                               
                     |              \2/   |               |              \2/   |                               
                     |    1 - ------------|               |    1 - ------------|                               
  /         2/a\   \ |           2/a   pi\|               |           2/a   pi\| /         2/a\   \            
  |      sec |-|   | |        sec |- - --||               |        sec |- - --|| |      sec |-|   |            
  |          \2/   | |            \2   2 /|    /a   pi\   |            \2   2 /| |          \2/   |    /a   pi\
  |1 + ------------|*|1 - ----------------|*sec|- - --|   |1 + ----------------|*|1 + ------------|*sec|- - --|
  |       2/a   pi\| |             2/a\   |    \2   2 /   |             2/a\   | |       2/a   pi\|    \2   2 /
  |    sec |- - --|| |          sec |-|   |               |          sec |-|   | |    sec |- - --||            
  \        \2   2 // |              \2/   |               |              \2/   | \        \2   2 //            
                     |    1 + ------------|               |    1 + ------------|                               
                     |           2/a   pi\|               |           2/a   pi\|                               
                     |        sec |- - --||               |        sec |- - --||                               
                     \            \2   2 //               \            \2   2 //                               
$$\frac{2 \sec{\left(\frac{a}{2} \right)}}{\left(\frac{- \frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1}{\frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1} + 1\right) \left(\frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} - \frac{2 \sec{\left(\frac{a}{2} \right)}}{\left(- \frac{- \frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1}{\frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1} + 1\right) \left(\frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}$$
                        /pi   a\                                           /pi   a\                  
                   2*csc|-- - -|                                      2*csc|-- - -|                  
                        \2    2/                                           \2    2/                  
- ------------------------------------------------ + ------------------------------------------------
                     /           2/pi   a\\          /           2/pi   a\\                          
                     |        csc |-- - -||          |        csc |-- - -||                          
                     |            \2    2/|          |            \2    2/|                          
                     |    1 - ------------|          |    1 - ------------|                          
  /       2/pi   a\\ |             2/a\   |          |             2/a\   | /       2/pi   a\\       
  |    csc |-- - -|| |          csc |-|   |          |          csc |-|   | |    csc |-- - -||       
  |        \2    2/| |              \2/   |    /a\   |              \2/   | |        \2    2/|    /a\
  |1 + ------------|*|1 - ----------------|*csc|-|   |1 + ----------------|*|1 + ------------|*csc|-|
  |         2/a\   | |           2/pi   a\|    \2/   |           2/pi   a\| |         2/a\   |    \2/
  |      csc |-|   | |        csc |-- - -||          |        csc |-- - -|| |      csc |-|   |       
  \          \2/   / |            \2    2/|          |            \2    2/| \          \2/   /       
                     |    1 + ------------|          |    1 + ------------|                          
                     |             2/a\   |          |             2/a\   |                          
                     |          csc |-|   |          |          csc |-|   |                          
                     \              \2/   /          \              \2/   /                          
$$\frac{2 \csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\left(1 + \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}\right) \left(\frac{1 - \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}} + 1\right) \csc{\left(\frac{a}{2} \right)}} - \frac{2 \csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\left(1 + \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}\right) \left(- \frac{1 - \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}} + 1\right) \csc{\left(\frac{a}{2} \right)}}$$
/                       /    3*pi\                /                       /    3*pi\             
|        1          for |a + ----| mod 2*pi = 0   |        1          for |a + ----| mod 2*pi = 0
|                       \     2  /                |                       \     2  /             
|                                                 |                                              
|        2/a   pi\                                |        2/a   pi\                             
<-1 + tan |- + --|                                <-1 + tan |- + --|                             
|         \2   4 /                                |         \2   4 /                             
|-----------------           otherwise            |-----------------           otherwise         
|        2/a   pi\                                |        2/a   pi\                             
| 1 + tan |- + --|                                | 1 + tan |- + --|                             
\         \2   4 /                                \         \2   4 /                             
----------------------------------------------- - -----------------------------------------------
        //     1        for a mod 2*pi = 0\               //     1        for a mod 2*pi = 0\    
        ||                                |               ||                                |    
        ||        2/a\                    |               ||        2/a\                    |    
        ||-1 + cot |-|                    |               ||-1 + cot |-|                    |    
    1 + |<         \2/                    |           1 - |<         \2/                    |    
        ||------------      otherwise     |               ||------------      otherwise     |    
        ||       2/a\                     |               ||       2/a\                     |    
        ||1 + cot |-|                     |               ||1 + cot |-|                     |    
        \\        \2/                     /               \\        \2/                     /    
$$\left(\frac{\begin{cases} 1 & \text{for}\: \left(a + \frac{3 \pi}{2}\right) \bmod 2 \pi = 0 \\\frac{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} - 1}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} - 1}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 1 & \text{for}\: \left(a + \frac{3 \pi}{2}\right) \bmod 2 \pi = 0 \\\frac{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} - 1}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} - 1}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) + 1}\right)$$
   /             0                for a mod pi = 0          /             0                for a mod pi = 0    
   |                                                        |                                                  
   |          2*sin(a)                                      |          2*sin(a)                                
   |----------------------------     otherwise              |----------------------------     otherwise        
   |             /        2    \                            |             /        2    \                      
   <             |     sin (a) |                            <             |     sin (a) |                      
   |(1 - cos(a))*|1 + ---------|                            |(1 - cos(a))*|1 + ---------|                      
   |             |         4/a\|                            |             |         4/a\|                      
   |             |    4*sin |-||                            |             |    4*sin |-||                      
   |             \          \2//                            |             \          \2//                      
   \                                                        \                                                  
------------------------------------------------------ - ------------------------------------------------------
    //             1               for a mod 2*pi = 0\       //             1               for a mod 2*pi = 0\
    ||                                               |       ||                                               |
    ||           2                                   |       ||           2                                   |
1 + |< -4 + 4*sin (a) + 4*cos(a)                     |   1 - |< -4 + 4*sin (a) + 4*cos(a)                     |
    ||---------------------------      otherwise     |       ||---------------------------      otherwise     |
    ||              2        2                       |       ||              2        2                       |
    \\2*(1 - cos(a))  + 2*sin (a)                    /       \\2*(1 - cos(a))  + 2*sin (a)                    /
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \sin{\left(a \right)}}{\left(1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}\right) \left(- \cos{\left(a \right)} + 1\right)} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{4 \sin^{2}{\left(a \right)} + 4 \cos{\left(a \right)} - 4}{2 \left(- \cos{\left(a \right)} + 1\right)^{2} + 2 \sin^{2}{\left(a \right)}} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \sin{\left(a \right)}}{\left(1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}\right) \left(- \cos{\left(a \right)} + 1\right)} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{4 \sin^{2}{\left(a \right)} + 4 \cos{\left(a \right)} - 4}{2 \left(- \cos{\left(a \right)} + 1\right)^{2} + 2 \sin^{2}{\left(a \right)}} & \text{otherwise} \end{cases}\right) + 1}\right)$$
/           0             for a mod pi = 0   /           0             for a mod pi = 0
|                                            |                                         
|         sin(a)                             |         sin(a)                          
|-----------------------     otherwise       |-----------------------     otherwise    
|/        2    \                             |/        2    \                          
<|     sin (a) |    2/a\                     <|     sin (a) |    2/a\                  
||1 + ---------|*sin |-|                     ||1 + ---------|*sin |-|                  
||         4/a\|     \2/                     ||         4/a\|     \2/                  
||    4*sin |-||                             ||    4*sin |-||                          
|\          \2//                             |\          \2//                          
\                                            \                                         
------------------------------------------ - ------------------------------------------
    //      1         for a mod 2*pi = 0\        //      1         for a mod 2*pi = 0\ 
    ||                                  |        ||                                  | 
    ||         2                        |        ||         2                        | 
    ||      sin (a)                     |        ||      sin (a)                     | 
    ||-1 + ---------                    |        ||-1 + ---------                    | 
    ||          4/a\                    |        ||          4/a\                    | 
    ||     4*sin |-|                    |        ||     4*sin |-|                    | 
1 + |<           \2/                    |    1 - |<           \2/                    | 
    ||--------------      otherwise     |        ||--------------      otherwise     | 
    ||        2                         |        ||        2                         | 
    ||     sin (a)                      |        ||     sin (a)                      | 
    ||1 + ---------                     |        ||1 + ---------                     | 
    ||         4/a\                     |        ||         4/a\                     | 
    ||    4*sin |-|                     |        ||    4*sin |-|                     | 
    \\          \2/                     /        \\          \2/                     / 
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{\sin{\left(a \right)}}{\left(1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}\right) \sin^{2}{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{-1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}}{1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{\sin{\left(a \right)}}{\left(1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}\right) \sin^{2}{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{-1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}}{1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}} & \text{otherwise} \end{cases}\right) + 1}\right)$$
     /              0                 for a mod pi = 0              /              0                 for a mod pi = 0      
     |                                                              |                                                      
     |/     0       for a mod pi = 0                                |/     0       for a mod pi = 0                        
     ||                                                             ||                                                     
     ||       /a\                                                   ||       /a\                                           
     <|  2*cot|-|                                                   <|  2*cot|-|                                           
     |<       \2/                        otherwise                  |<       \2/                        otherwise          
     ||-----------     otherwise                                    ||-----------     otherwise                            
     ||       2/a\                                                  ||       2/a\                                          
     ||1 + cot |-|                                                  ||1 + cot |-|                                          
     \\        \2/                                                  \\        \2/                                          
------------------------------------------------------------ - ------------------------------------------------------------
    //                1                  for a mod 2*pi = 0\       //                1                  for a mod 2*pi = 0\
    ||                                                     |       ||                                                     |
    ||/     1        for a mod 2*pi = 0                    |       ||/     1        for a mod 2*pi = 0                    |
    |||                                                    |       |||                                                    |
    |||        2/a\                                        |       |||        2/a\                                        |
1 + |<|-1 + cot |-|                                        |   1 - |<|-1 + cot |-|                                        |
    ||<         \2/                          otherwise     |       ||<         \2/                          otherwise     |
    |||------------      otherwise                         |       |||------------      otherwise                         |
    |||       2/a\                                         |       |||       2/a\                                         |
    |||1 + cot |-|                                         |       |||1 + cot |-|                                         |
    \\\        \2/                                         /       \\\        \2/                                         /
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} - 1}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} - 1}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right) + 1}\right)$$
/              0                 for a mod pi = 0   /              0                 for a mod pi = 0
|                                                   |                                                
|                /a\                                |                /a\                             
|           2*cos|-|                                |           2*cos|-|                             
|                \2/                                |                \2/                             
|------------------------------     otherwise       |------------------------------     otherwise    

            
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cos{\left(\frac{a}{2} \right)}}{\left(\frac{\cos^{2}{\left(\frac{a}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\frac{\cos^{2}{\left(\frac{a}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} - 1}{\frac{\cos^{2}{\left(\frac{a}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cos{\left(\frac{a}{2} \right)}}{\left(\frac{\cos^{2}{\left(\frac{a}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\frac{\cos^{2}{\left(\frac{a}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} - 1}{\frac{\cos^{2}{\left(\frac{a}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1} & \text{otherwise} \end{cases}\right) + 1}\right)$$
/            0              for a mod pi = 0   /            0              for a mod pi = 0
|                                              |                                           
|           /a   pi\                           |           /a   pi\                        
|      2*sec|- - --|                           |      2*sec|- - --|                        
|           \2   2 /                           |           \2   2 /                        
|-------------------------     otherwise       |-------------------------     otherwise    

            
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} \right)}}\right) \sec{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{-1 + \frac{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} \right)}}} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} \right)}}\right) \sec{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{-1 + \frac{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} \right)}}} & \text{otherwise} \end{cases}\right) + 1}\right)$$
/              0                 for a mod pi = 0   /              0                 for a mod pi = 0
|                                                   |                                                
|                /a\                                |                /a\                             
|           2*csc|-|                                |           2*csc|-|                             
|                \2/                                |                \2/                             
|------------------------------     otherwise       |------------------------------     otherwise    

            
$$\left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \csc{\left(\frac{a}{2} \right)}}{\left(\frac{\csc^{2}{\left(\frac{a}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} + 1\right) \csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}}{\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\frac{\csc^{2}{\left(\frac{a}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} - 1}{\frac{\csc^{2}{\left(\frac{a}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} + 1} & \text{otherwise} \end{cases}\right) + 1}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \csc{\left(\frac{a}{2} \right)}}{\left(\frac{\csc^{2}{\left(\frac{a}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} + 1\right) \csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}}{\left(- \begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\frac{\csc^{2}{\left(\frac{a}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} - 1}{\frac{\csc^{2}{\left(\frac{a}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} + 1} & \text{otherwise} \end{cases}\right) + 1}\right)$$
Piecewise((0, Mod(a = pi, 0)), (2*csc(a/2)/((1 + csc(a/2)^2/csc(pi/2 - a/2)^2)*csc(pi/2 - a/2)), True))/(1 + Piecewise((1, Mod(a = 2*pi, 0)), ((-1 + csc(a/2)^2/csc(pi/2 - a/2)^2)/(1 + csc(a/2)^2/csc(pi/2 - a/2)^2), True))) - Piecewise((0, Mod(a = pi, 0)), (2*csc(a/2)/((1 + csc(a/2)^2/csc(pi/2 - a/2)^2)*csc(pi/2 - a/2)), True))/(1 - Piecewise((1, Mod(a = 2*pi, 0)), ((-1 + csc(a/2)^2/csc(pi/2 - a/2)^2)/(1 + csc(a/2)^2/csc(pi/2 - a/2)^2), True)))
Численный ответ [src]
sin(a)/(1.0 + cos(a)) - sin(a)/(1.0 - cos(a))
sin(a)/(1.0 + cos(a)) - sin(a)/(1.0 - cos(a))
Рациональный знаменатель [src]
(1 - cos(a))*sin(a) - (1 + cos(a))*sin(a)
-----------------------------------------
        (1 - cos(a))*(1 + cos(a))        
$$\frac{\left(- \cos{\left(a \right)} + 1\right) \sin{\left(a \right)} - \left(\cos{\left(a \right)} + 1\right) \sin{\left(a \right)}}{\left(- \cos{\left(a \right)} + 1\right) \left(\cos{\left(a \right)} + 1\right)}$$
((1 - cos(a))*sin(a) - (1 + cos(a))*sin(a))/((1 - cos(a))*(1 + cos(a)))
Степени [src]
   /   -I*a    I*a\       /   -I*a    I*a\ 
 I*\- e     + e   /     I*\- e     + e   / 
-------------------- - --------------------
  /     I*a    -I*a\     /     I*a    -I*a\
  |    e      e    |     |    e      e    |
2*|1 - ---- - -----|   2*|1 + ---- + -----|
  \     2       2  /     \     2       2  /
$$- \frac{i \left(e^{i a} - e^{- i a}\right)}{2 \left(\frac{e^{i a}}{2} + 1 + \frac{e^{- i a}}{2}\right)} + \frac{i \left(e^{i a} - e^{- i a}\right)}{2 \left(- \frac{e^{i a}}{2} + 1 - \frac{e^{- i a}}{2}\right)}$$
i*(-exp(-i*a) + exp(i*a))/(2*(1 - exp(i*a)/2 - exp(-i*a)/2)) - i*(-exp(-i*a) + exp(i*a))/(2*(1 + exp(i*a)/2 + exp(-i*a)/2))
Комбинаторика [src]
     2*cos(a)*sin(a)      
--------------------------
(1 + cos(a))*(-1 + cos(a))
$$\frac{2 \sin{\left(a \right)} \cos{\left(a \right)}}{\left(\cos{\left(a \right)} - 1\right) \left(\cos{\left(a \right)} + 1\right)}$$
2*cos(a)*sin(a)/((1 + cos(a))*(-1 + cos(a)))
Объединение рациональных выражений [src]
     -2*cos(a)*sin(a)    
-------------------------
(1 - cos(a))*(1 + cos(a))
$$- \frac{2 \sin{\left(a \right)} \cos{\left(a \right)}}{\left(- \cos{\left(a \right)} + 1\right) \left(\cos{\left(a \right)} + 1\right)}$$
-2*cos(a)*sin(a)/((1 - cos(a))*(1 + cos(a)))