Господин Экзамен

Другие калькуляторы

sin(a)*cos(a) если a=1/3

Выражение, которое надо упростить:

Решение

Вы ввели [src]
sin(a)*cos(a)
$$\sin{\left(a \right)} \cos{\left(a \right)}$$
sin(a)*cos(a)
Общее упрощение [src]
sin(2*a)
--------
   2    
$$\frac{\sin{\left(2 a \right)}}{2}$$
sin(2*a)/2
Подстановка условия [src]
sin(a)*cos(a) при a = 1/3
подставляем
sin(a)*cos(a)
$$\sin{\left(a \right)} \cos{\left(a \right)}$$
sin(2*a)
--------
   2    
$$\frac{\sin{\left(2 a \right)}}{2}$$
переменные
a = 1/3
$$a = \frac{1}{3}$$
sin(2*(1/3))
------------
     2      
$$\frac{\sin{\left(2 (1/3) \right)}}{2}$$
sin(2/3)
--------
   2    
$$\frac{\sin{\left(\frac{2}{3} \right)}}{2}$$
sin(2/3)/2
Численный ответ [src]
cos(a)*sin(a)
cos(a)*sin(a)
Степени [src]
   / I*a    -I*a\                  
   |e      e    | /   -I*a    I*a\ 
-I*|---- + -----|*\- e     + e   / 
   \ 2       2  /                  
-----------------------------------
                 2                 
$$- \frac{i \left(\frac{e^{i a}}{2} + \frac{e^{- i a}}{2}\right) \left(e^{i a} - e^{- i a}\right)}{2}$$
-i*(exp(i*a)/2 + exp(-i*a)/2)*(-exp(-i*a) + exp(i*a))/2
Собрать выражение [src]
sin(2*a)
--------
   2    
$$\frac{\sin{\left(2 a \right)}}{2}$$
sin(2*a)/2
Тригонометрическая часть [src]
sin(2*a)
--------
   2    
$$\frac{\sin{\left(2 a \right)}}{2}$$
    1     
----------
2*csc(2*a)
$$\frac{1}{2 \csc{\left(2 a \right)}}$$
   /      pi\
cos|2*a - --|
   \      2 /
-------------
      2      
$$\frac{\cos{\left(2 a - \frac{\pi}{2} \right)}}{2}$$
       1       
---------------
     /      pi\
2*sec|2*a - --|
     \      2 /
$$\frac{1}{2 \sec{\left(2 a - \frac{\pi}{2} \right)}}$$
      1      
-------------
csc(a)*sec(a)
$$\frac{1}{\csc{\left(a \right)} \sec{\left(a \right)}}$$
   tan(a)  
-----------
       2   
1 + tan (a)
$$\frac{\tan{\left(a \right)}}{\tan^{2}{\left(a \right)} + 1}$$
          /    pi\
sin(a)*sin|a + --|
          \    2 /
$$\sin{\left(a \right)} \sin{\left(a + \frac{\pi}{2} \right)}$$
          /    pi\
cos(a)*cos|a - --|
          \    2 /
$$\cos{\left(a \right)} \cos{\left(a - \frac{\pi}{2} \right)}$$
        1         
------------------
          /    pi\
sec(a)*sec|a - --|
          \    2 /
$$\frac{1}{\sec{\left(a \right)} \sec{\left(a - \frac{\pi}{2} \right)}}$$
        1         
------------------
          /pi    \
sec(a)*sec|-- - a|
          \2     /
$$\frac{1}{\sec{\left(a \right)} \sec{\left(- a + \frac{\pi}{2} \right)}}$$
        1         
------------------
          /pi    \
csc(a)*csc|-- - a|
          \2     /
$$\frac{1}{\csc{\left(a \right)} \csc{\left(- a + \frac{\pi}{2} \right)}}$$
/          2/a\\       
|-1 + 2*cos |-||*sin(a)
\           \2//       
$$\left(2 \cos^{2}{\left(\frac{a}{2} \right)} - 1\right) \sin{\left(a \right)}$$
           1           
-----------------------
               /pi    \
csc(pi - a)*csc|-- - a|
               \2     /
$$\frac{1}{\csc{\left(- a + \pi \right)} \csc{\left(- a + \frac{\pi}{2} \right)}}$$
                       /a\
(1 + cos(a))*cos(a)*tan|-|
                       \2/
$$\left(\cos{\left(a \right)} + 1\right) \cos{\left(a \right)} \tan{\left(\frac{a}{2} \right)}$$
/   0      for 2*a mod pi = 0
<                            
\sin(2*a)      otherwise     
-----------------------------
              2              
$$\frac{\begin{cases} 0 & \text{for}\: 2 a \bmod \pi = 0 \\\sin{\left(2 a \right)} & \text{otherwise} \end{cases}}{2}$$
  /          2/a\\    /a\    /a\
2*|-1 + 2*cos |-||*cos|-|*sin|-|
  \           \2//    \2/    \2/
$$2 \cdot \left(2 \cos^{2}{\left(\frac{a}{2} \right)} - 1\right) \sin{\left(\frac{a}{2} \right)} \cos{\left(\frac{a}{2} \right)}$$
/     0       for 2*a mod pi = 0
|                               
|  2*cot(a)                     
<-----------      otherwise     
|       2                       
|1 + cot (a)                    
\                               
--------------------------------
               2                
$$\frac{\begin{cases} 0 & \text{for}\: 2 a \bmod \pi = 0 \\\frac{2 \cot{\left(a \right)}}{\cot^{2}{\left(a \right)} + 1} & \text{otherwise} \end{cases}}{2}$$
  /       2/a\\    /a\
2*|1 - tan |-||*tan|-|
  \        \2//    \2/
----------------------
                 2    
    /       2/a\\     
    |1 + tan |-||     
    \        \2//     
$$\frac{2 \cdot \left(- \tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \tan{\left(\frac{a}{2} \right)}}{\left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right)^{2}}$$
     /       1   \   
   2*|1 - -------|   
     |       2/a\|   
     |    cot |-||   
     \        \2//   
---------------------
             2       
/       1   \     /a\
|1 + -------| *cot|-|
|       2/a\|     \2/
|    cot |-||        
\        \2//        
$$\frac{2 \cdot \left(1 - \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}\right)}{\left(1 + \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}\right)^{2} \cot{\left(\frac{a}{2} \right)}}$$
   2/a\ /       2/a   pi\\ /       2/a\\             
cos |-|*|1 - cot |- + --||*|1 - tan |-||*(1 + sin(a))
    \2/ \        \2   4 // \        \2//             
-----------------------------------------------------
                          2                          
$$\frac{\left(- \tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(- \cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right) \left(\sin{\left(a \right)} + 1\right) \cos^{2}{\left(\frac{a}{2} \right)}}{2}$$
           /a\    /a   pi\      
      4*tan|-|*tan|- + --|      
           \2/    \2   4 /      
--------------------------------
/       2/a\\ /       2/a   pi\\
|1 + tan |-||*|1 + tan |- + --||
\        \2// \        \2   4 //
$$\frac{4 \tan{\left(\frac{a}{2} \right)} \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right)}$$
           /a\    /a   pi\      
      4*cot|-|*tan|- + --|      
           \2/    \2   4 /      
--------------------------------
/       2/a\\ /       2/a   pi\\
|1 + cot |-||*|1 + tan |- + --||
\        \2// \        \2   4 //
$$\frac{4 \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)} \cot{\left(\frac{a}{2} \right)}}{\left(\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right) \left(\cot^{2}{\left(\frac{a}{2} \right)} + 1\right)}$$
     2/a\ /   2           4/a\\       
4*sin |-|*|sin (a) - 4*sin |-||*sin(a)
      \2/ \                \2//       
--------------------------------------
                             2        
        /   2           4/a\\         
        |sin (a) + 4*sin |-||         
        \                \2//         
$$\frac{4 \left(- 4 \sin^{4}{\left(\frac{a}{2} \right)} + \sin^{2}{\left(a \right)}\right) \sin^{2}{\left(\frac{a}{2} \right)} \sin{\left(a \right)}}{\left(4 \sin^{4}{\left(\frac{a}{2} \right)} + \sin^{2}{\left(a \right)}\right)^{2}}$$
//  0     for a mod pi = 0\ //  1     for a mod 2*pi = 0\
|<                        |*|<                          |
\\sin(a)     otherwise    / \\cos(a)      otherwise     /
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right)$$
                            //     1       for a mod 2*pi = 0\
//  0     for a mod pi = 0\ ||                               |
|<                        |*|<   /    pi\                    |
\\sin(a)     otherwise    / ||sin|a + --|      otherwise     |
                            \\   \    2 /                    /
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\sin{\left(a + \frac{\pi}{2} \right)} & \text{otherwise} \end{cases}\right)$$
//     0       for a mod pi = 0\                              
||                             | //  1     for a mod 2*pi = 0\
|<   /    pi\                  |*|<                          |
||cos|a - --|     otherwise    | \\cos(a)      otherwise     /
\\   \    2 /                  /                              
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\cos{\left(a - \frac{\pi}{2} \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right)$$
          /         4/a\\
          |    4*sin |-||
     2/a\ |          \2/|
4*sin |-|*|1 - ---------|
      \2/ |        2    |
          \     sin (a) /
-------------------------
                2        
 /         4/a\\         
 |    4*sin |-||         
 |          \2/|         
 |1 + ---------| *sin(a) 
 |        2    |         
 \     sin (a) /         
$$\frac{4 \left(- \frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1\right) \sin^{2}{\left(\frac{a}{2} \right)}}{\left(\frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1\right)^{2} \sin{\left(a \right)}}$$
/        2/a\\ /        2/a   pi\\
|-1 + cot |-||*|-1 + tan |- + --||
\         \2// \         \2   4 //
----------------------------------
 /       2/a\\ /       2/a   pi\\ 
 |1 + cot |-||*|1 + tan |- + --|| 
 \        \2// \        \2   4 // 
$$\frac{\left(\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} - 1\right) \left(\cot^{2}{\left(\frac{a}{2} \right)} - 1\right)}{\left(\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right) \left(\cot^{2}{\left(\frac{a}{2} \right)} + 1\right)}$$
/       2/a   pi\\ /       2/a\\
|1 - cot |- + --||*|1 - tan |-||
\        \2   4 // \        \2//
--------------------------------
/       2/a   pi\\ /       2/a\\
|1 + cot |- + --||*|1 + tan |-||
\        \2   4 // \        \2//
$$\frac{\left(- \tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(- \cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right)}{\left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(\cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right)}$$
                              //            /    3*pi\             \
//  1     for a mod 2*pi = 0\ ||  1     for |a + ----| mod 2*pi = 0|
|<                          |*|<            \     2  /             |
\\cos(a)      otherwise     / ||                                   |
                              \\sin(a)           otherwise         /
$$\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: \left(a + \frac{3 \pi}{2}\right) \bmod 2 \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right)$$
//     0       for a mod pi = 0\                              
||                             | //  1     for a mod 2*pi = 0\
||     1                       | ||                          |
|<-----------     otherwise    |*|<  1                       |
||   /    pi\                  | ||------      otherwise     |
||sec|a - --|                  | \\sec(a)                    /
\\   \    2 /                  /                              
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{1}{\sec{\left(a - \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\sec{\left(a \right)}} & \text{otherwise} \end{cases}\right)$$
                            //     1       for a mod 2*pi = 0\
//  0     for a mod pi = 0\ ||                               |
||                        | ||     1                         |
|<  1                     |*|<-----------      otherwise     |
||------     otherwise    | ||   /pi    \                    |
\\csc(a)                  / ||csc|-- - a|                    |
                            \\   \2     /                    /
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{1}{\csc{\left(a \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{1}{\csc{\left(- a + \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right)$$
//    0       for a mod pi = 0\                              
||                            |                              
||1 - cos(a)                  | //  1     for a mod 2*pi = 0\
|<----------     otherwise    |*|<                          |
||     /a\                    | \\cos(a)      otherwise     /
||  tan|-|                    |                              
\\     \2/                    /                              
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{- \cos{\left(a \right)} + 1}{\tan{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right)$$
    /         2/a\   \         
    |      sec |-|   |         
    |          \2/   |    /a\  
  2*|1 - ------------|*sec|-|  
    |       2/a   pi\|    \2/  
    |    sec |- - --||         
    \        \2   2 //         
-------------------------------
                  2            
/         2/a\   \             
|      sec |-|   |             
|          \2/   |     /a   pi\
|1 + ------------| *sec|- - --|
|       2/a   pi\|     \2   2 /
|    sec |- - --||             
\        \2   2 //             
$$\frac{2 \left(- \frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \sec{\left(\frac{a}{2} \right)}}{\left(\frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right)^{2} \sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}$$
                            //                              /    pi\           \
                            ||           0              for |a + --| mod pi = 0|
//  0     for a mod pi = 0\ ||                              \    2 /           |
|<                        |*|<                                                 |
\\sin(a)     otherwise    / ||                /a   pi\                         |
                            ||(1 + sin(a))*cot|- + --|         otherwise       |
                            \\                \2   4 /                         /
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 0 & \text{for}\: \left(a + \frac{\pi}{2}\right) \bmod \pi = 0 \\\left(\sin{\left(a \right)} + 1\right) \cot{\left(\frac{a}{2} + \frac{\pi}{4} \right)} & \text{otherwise} \end{cases}\right)$$
  /       2/a   pi\\            
  |    cos |- - --||            
  |        \2   2 /|    /a   pi\
2*|1 - ------------|*cos|- - --|
  |         2/a\   |    \2   2 /
  |      cos |-|   |            
  \          \2/   /            
--------------------------------
                     2          
   /       2/a   pi\\           
   |    cos |- - --||           
   |        \2   2 /|     /a\   
   |1 + ------------| *cos|-|   
   |         2/a\   |     \2/   
   |      cos |-|   |           
   \          \2/   /           
$$\frac{2 \cdot \left(1 - \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}\right) \cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}\right)^{2} \cos{\left(\frac{a}{2} \right)}}$$
  /       2/pi   a\\            
  |    csc |-- - -||            
  |        \2    2/|    /pi   a\
2*|1 - ------------|*csc|-- - -|
  |         2/a\   |    \2    2/
  |      csc |-|   |            
  \          \2/   /            
--------------------------------
                     2          
   /       2/pi   a\\           
   |    csc |-- - -||           
   |        \2    2/|     /a\   
   |1 + ------------| *csc|-|   
   |         2/a\   |     \2/   
   |      csc |-|   |           
   \          \2/   /           
$$\frac{2 \cdot \left(1 - \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}\right) \csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\left(1 + \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}\right)^{2} \csc{\left(\frac{a}{2} \right)}}$$
//     0       for a mod pi = 0\ //     1        for a mod 2*pi = 0\
||                             | ||                                |
||       /a\                   | ||        2/a\                    |
||  2*cot|-|                   | ||-1 + cot |-|                    |
|<       \2/                   |*|<         \2/                    |
||-----------     otherwise    | ||------------      otherwise     |
||       2/a\                  | ||       2/a\                     |
||1 + cot |-|                  | ||1 + cot |-|                     |
\\        \2/                  / \\        \2/                     /
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} - 1}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
//     0       for a mod pi = 0\ //     1       for a mod 2*pi = 0\
||                             | ||                               |
||       /a\                   | ||       2/a\                    |
||  2*tan|-|                   | ||1 - tan |-|                    |
|<       \2/                   |*|<        \2/                    |
||-----------     otherwise    | ||-----------      otherwise     |
||       2/a\                  | ||       2/a\                    |
||1 + tan |-|                  | ||1 + tan |-|                    |
\\        \2/                  / \\        \2/                    /
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \tan{\left(\frac{a}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{- \tan^{2}{\left(\frac{a}{2} \right)} + 1}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
//            0              for a mod pi = 0\ //             1               for a mod 2*pi = 0\
||                                           | ||                                               |
|
            
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right)$$
                                          //     1        for a mod 2*pi = 0\
                                          ||                                |
//         0            for a mod pi = 0\ ||        1                       |
||                                      | ||-1 + -------                    |
||         2                            | ||        2/a\                    |
||--------------------     otherwise    | ||     tan |-|                    |
|
            
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2}{\left(1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} \right)}}\right) \tan{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{-1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} \right)}}} & \text{otherwise} \end{cases}\right)$$
                                 //                      /    pi\           \
//     0       for a mod pi = 0\ ||       0          for |a + --| mod pi = 0|
||                             | ||                      \    2 /           |
||       /a\                   | ||                                         |
||  2*cot|-|                   | ||      /a   pi\                           |
|<       \2/                   |*|< 2*cot|- + --|                           |
||-----------     otherwise    | ||      \2   4 /                           |
||       2/a\                  | ||----------------         otherwise       |
||1 + cot |-|                  | ||       2/a   pi\                         |
\\        \2/                  / ||1 + cot |- + --|                         |
                                 \\        \2   4 /                         /
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 0 & \text{for}\: \left(a + \frac{\pi}{2}\right) \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
                                    //                       /    3*pi\             \
//     1        for a mod 2*pi = 0\ ||        1          for |a + ----| mod 2*pi = 0|
||                                | ||                       \     2  /             |
||        2/a\                    | ||                                              |
||-1 + cot |-|                    | ||        2/a   pi\                             |
|<         \2/                    |*|<-1 + tan |- + --|                             |
||------------      otherwise     | ||         \2   4 /                             |
||       2/a\                     | ||-----------------           otherwise         |
||1 + cot |-|                     | ||        2/a   pi\                             |
\\        \2/                     / || 1 + tan |- + --|                             |
                                    \\         \2   4 /                             /
$$\left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} - 1}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: \left(a + \frac{3 \pi}{2}\right) \bmod 2 \pi = 0 \\\frac{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} - 1}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
//             0                for a mod pi = 0\                                                   
||                                              |                                                   
||          2*sin(a)                            | //             1               for a mod 2*pi = 0\
||----------------------------     otherwise    | ||                                               |
||             /        2    \                  | ||           2                                   |
|<             |     sin (a) |                  |*|< -4 + 4*sin (a) + 4*cos(a)                     |
||(1 - cos(a))*|1 + ---------|                  | ||---------------------------      otherwise     |
||             |         4/a\|                  | ||              2        2                       |
||             |    4*sin |-||                  | \\2*(1 - cos(a))  + 2*sin (a)                    /
||             \          \2//                  |                                                   
\\                                              /                                                   
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \sin{\left(a \right)}}{\left(1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}\right) \left(- \cos{\left(a \right)} + 1\right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{4 \sin^{2}{\left(a \right)} + 4 \cos{\left(a \right)} - 4}{2 \left(- \cos{\left(a \right)} + 1\right)^{2} + 2 \sin^{2}{\left(a \right)}} & \text{otherwise} \end{cases}\right)$$
                                             //      1         for a mod 2*pi = 0\
                                             ||                                  |
//           0             for a mod pi = 0\ ||         2                        |
||                                         | ||      sin (a)                     |
||         sin(a)                          | ||-1 + ---------                    |
||-----------------------     otherwise    | ||          4/a\                    |
||/        2    \                          | ||     4*sin |-|                    |
|<|     sin (a) |    2/a\                  |*|<           \2/                    |
|||1 + ---------|*sin |-|                  | ||--------------      otherwise     |
|||         4/a\|     \2/                  | ||        2                         |
|||    4*sin |-||                          | ||     sin (a)                      |
||\          \2//                          | ||1 + ---------                     |
\\                                         / ||         4/a\                     |
                                             ||    4*sin |-|                     |
                                             \\          \2/                     /
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{\sin{\left(a \right)}}{\left(1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}\right) \sin^{2}{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{-1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}}{1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}} & \text{otherwise} \end{cases}\right)$$
//              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\                                        |
|<|  2*cot|-|                                     |*|<|-1 + cot |-|                                        |
||<       \2/                        otherwise    | ||<         \2/                          otherwise     |
|||-----------     otherwise                      | |||------------      otherwise                         |
|||       2/a\                                    | |||       2/a\                                         |
|||1 + cot |-|                                    | |||1 + cot |-|                                         |
\\\        \2/                                    / \\\        \2/                                         /
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} - 1}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right)$$
                                                    //        1          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 |- - --|                    |
|
            
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cos{\left(\frac{a}{2} \right)}}{\left(\frac{\cos^{2}{\left(\frac{a}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\frac{\cos^{2}{\left(\frac{a}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} - 1}{\frac{\cos^{2}{\left(\frac{a}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1} & \text{otherwise} \end{cases}\right)$$
                                               //        1          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 |-|                       |
|
            
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} \right)}}\right) \sec{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{-1 + \frac{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} \right)}}} & \text{otherwise} \end{cases}\right)$$
                                                    //        1          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 |-- - -|                    |
|
            
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \csc{\left(\frac{a}{2} \right)}}{\left(\frac{\csc^{2}{\left(\frac{a}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} + 1\right) \csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\frac{\csc^{2}{\left(\frac{a}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} - 1}{\frac{\csc^{2}{\left(\frac{a}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} + 1} & \text{otherwise} \end{cases}\right)$$
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))*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))