Господин Экзамен

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sin(a)+cos(a) если a=-2

Выражение, которое надо упростить:

Решение

Вы ввели [src]
sin(a) + cos(a)
$$\sin{\left(a \right)} + \cos{\left(a \right)}$$
sin(a) + cos(a)
Подстановка условия [src]
sin(a) + cos(a) при a = -2
подставляем
sin(a) + cos(a)
$$\sin{\left(a \right)} + \cos{\left(a \right)}$$
cos(a) + sin(a)
$$\sin{\left(a \right)} + \cos{\left(a \right)}$$
переменные
a = -2
$$a = -2$$
cos((-2)) + sin((-2))
$$\sin{\left((-2) \right)} + \cos{\left((-2) \right)}$$
cos(-2) + sin(-2)
$$\sin{\left(-2 \right)} + \cos{\left(-2 \right)}$$
-sin(2) + cos(2)
$$- \sin{\left(2 \right)} + \cos{\left(2 \right)}$$
-sin(2) + cos(2)
Численный ответ [src]
cos(a) + sin(a)
cos(a) + sin(a)
Степени [src]
 I*a    -I*a     /   -I*a    I*a\
e      e       I*\- e     + e   /
---- + ----- - ------------------
 2       2             2         
$$- \frac{i \left(e^{i a} - e^{- i a}\right)}{2} + \frac{e^{i a}}{2} + \frac{e^{- i a}}{2}$$
exp(i*a)/2 + exp(-i*a)/2 - i*(-exp(-i*a) + exp(i*a))/2
Тригонометрическая часть [src]
  ___    /    pi\
\/ 2 *cos|a - --|
         \    4 /
$$\sqrt{2} \cos{\left(a - \frac{\pi}{4} \right)}$$
  ___    /    pi\
\/ 2 *sin|a + --|
         \    4 /
$$\sqrt{2} \sin{\left(a + \frac{\pi}{4} \right)}$$
     ___   
   \/ 2    
-----------
   /    pi\
csc|a + --|
   \    4 /
$$\frac{\sqrt{2}}{\csc{\left(a + \frac{\pi}{4} \right)}}$$
     ___   
   \/ 2    
-----------
   /    pi\
sec|a - --|
   \    4 /
$$\frac{\sqrt{2}}{\sec{\left(a - \frac{\pi}{4} \right)}}$$
            /    pi\
cos(a) + cos|a - --|
            \    2 /
$$\cos{\left(a \right)} + \cos{\left(a - \frac{\pi}{2} \right)}$$
            /    pi\
sin(a) + sin|a + --|
            \    2 /
$$\sin{\left(a \right)} + \sin{\left(a + \frac{\pi}{2} \right)}$$
  1        1   
------ + ------
csc(a)   sec(a)
$$\frac{1}{\sec{\left(a \right)}} + \frac{1}{\csc{\left(a \right)}}$$
          2/a\         
-1 + 2*cos |-| + sin(a)
           \2/         
$$2 \cos^{2}{\left(\frac{a}{2} \right)} + \sin{\left(a \right)} - 1$$
  1           1     
------ + -----------
sec(a)      /    pi\
         sec|a - --|
            \    2 /
$$\frac{1}{\sec{\left(a - \frac{\pi}{2} \right)}} + \frac{1}{\sec{\left(a \right)}}$$
  1           1     
------ + -----------
sec(a)      /pi    \
         sec|-- - a|
            \2     /
$$\frac{1}{\sec{\left(- a + \frac{\pi}{2} \right)}} + \frac{1}{\sec{\left(a \right)}}$$
  1           1     
------ + -----------
csc(a)      /pi    \
         csc|-- - a|
            \2     /
$$\frac{1}{\csc{\left(- a + \frac{\pi}{2} \right)}} + \frac{1}{\csc{\left(a \right)}}$$
     1             1     
----------- + -----------
csc(pi - a)      /pi    \
              csc|-- - a|
                 \2     /
$$\frac{1}{\csc{\left(- a + \frac{\pi}{2} \right)}} + \frac{1}{\csc{\left(- a + \pi \right)}}$$
                /a\         
(1 + cos(a))*tan|-| + cos(a)
                \2/         
$$\left(\cos{\left(a \right)} + 1\right) \tan{\left(\frac{a}{2} \right)} + \cos{\left(a \right)}$$
    ___    /a   pi\
2*\/ 2 *tan|- + --|
           \2   8 /
-------------------
         2/a   pi\ 
  1 + tan |- + --| 
          \2   8 / 
$$\frac{2 \sqrt{2} \tan{\left(\frac{a}{2} + \frac{\pi}{8} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{8} \right)} + 1}$$
/       2/a   pi\\                      
|1 - cot |- + --||*(1 + sin(a))         
\        \2   4 //                      
------------------------------- + cos(a)
               2                        
$$\frac{\left(- \cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right) \left(\sin{\left(a \right)} + 1\right)}{2} + \cos{\left(a \right)}$$
       2/a\          /a\ 
1 - tan |-|     2*tan|-| 
        \2/          \2/ 
----------- + -----------
       2/a\          2/a\
1 + tan |-|   1 + tan |-|
        \2/           \2/
$$\frac{- \tan^{2}{\left(\frac{a}{2} \right)} + 1}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} + \frac{2 \tan{\left(\frac{a}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} \right)} + 1}$$
       /a\          /a   pi\  
  2*cot|-|     2*tan|- + --|  
       \2/          \2   4 /  
----------- + ----------------
       2/a\          2/a   pi\
1 + cot |-|   1 + tan |- + --|
        \2/           \2   4 /
$$\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} + \frac{2 \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1}$$
       /a\          /a   pi\  
  2*tan|-|     2*tan|- + --|  
       \2/          \2   4 /  
----------- + ----------------
       2/a\          2/a   pi\
1 + tan |-|   1 + tan |- + --|
        \2/           \2   4 /
$$\frac{2 \tan{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1} + \frac{2 \tan{\left(\frac{a}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} \right)} + 1}$$
        2/a\           2/a   pi\
-1 + cot |-|   -1 + tan |- + --|
         \2/            \2   4 /
------------ + -----------------
       2/a\            2/a   pi\
1 + cot |-|     1 + tan |- + --|
        \2/             \2   4 /
$$\frac{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} - 1}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1} + \frac{\cot^{2}{\left(\frac{a}{2} \right)} - 1}{\cot^{2}{\left(\frac{a}{2} \right)} + 1}$$
       2/a   pi\          2/a\
1 - cot |- + --|   1 - tan |-|
        \2   4 /           \2/
---------------- + -----------
       2/a   pi\          2/a\
1 + cot |- + --|   1 + tan |-|
        \2   4 /           \2/
$$\frac{- \tan^{2}{\left(\frac{a}{2} \right)} + 1}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} + \frac{- \cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1}{\cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1}$$
       1                          
1 - -------                       
       2/a\                       
    cot |-|                       
        \2/            2          
----------- + --------------------
       1      /       1   \    /a\
1 + -------   |1 + -------|*cot|-|
       2/a\   |       2/a\|    \2/
    cot |-|   |    cot |-||       
        \2/   \        \2//       
$$\frac{1 - \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}} + \frac{2}{\left(1 + \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}\right) \cot{\left(\frac{a}{2} \right)}}$$
      //                                /    pi\           \
      ||            0               for |a + --| mod pi = 0|
  ___ ||                                \    4 /           |
\/ 2 *|<                                                   |
      ||     2/a   pi\    /a   pi\                         |
      ||2*sin |- + --|*cot|- + --|         otherwise       |
      \\      \2   8 /    \2   8 /                         /
$$\sqrt{2} \left(\begin{cases} 0 & \text{for}\: \left(a + \frac{\pi}{4}\right) \bmod \pi = 0 \\2 \sin^{2}{\left(\frac{a}{2} + \frac{\pi}{8} \right)} \cot{\left(\frac{a}{2} + \frac{\pi}{8} \right)} & \text{otherwise} \end{cases}\right)$$
//  0     for a mod pi = 0\   //  1     for a mod 2*pi = 0\
|<                        | + |<                          |
\\sin(a)     otherwise    /   \\cos(a)      otherwise     /
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) + \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right)$$
      //                      /    pi\           \
      ||       0          for |a + --| mod pi = 0|
      ||                      \    4 /           |
      ||                                         |
  ___ ||      /a   pi\                           |
\/ 2 *|< 2*cot|- + --|                           |
      ||      \2   8 /                           |
      ||----------------         otherwise       |
      ||       2/a   pi\                         |
      ||1 + cot |- + --|                         |
      \\        \2   8 /                         /
$$\sqrt{2} \left(\begin{cases} 0 & \text{for}\: \left(a + \frac{\pi}{4}\right) \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} + \frac{\pi}{8} \right)}}{\cot^{2}{\left(\frac{a}{2} + \frac{\pi}{8} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
//     0       for a mod pi = 0\                                
||                             |   //  1     for a mod 2*pi = 0\
|<   /    pi\                  | + |<                          |
||cos|a - --|     otherwise    |   \\cos(a)      otherwise     /
\\   \    2 /                  /                                
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\cos{\left(a - \frac{\pi}{2} \right)} & \text{otherwise} \end{cases}\right) + \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right)$$
                              //     1       for a mod 2*pi = 0\
//  0     for a mod pi = 0\   ||                               |
|<                        | + |<   /    pi\                    |
\\sin(a)     otherwise    /   ||sin|a + --|      otherwise     |
                              \\   \    2 /                    /
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) + \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\sin{\left(a + \frac{\pi}{2} \right)} & \text{otherwise} \end{cases}\right)$$
                                //            /    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\        
                                   4*sin |-|*sin(a) 
 2*(-1 - cos(2*a) + 2*cos(a))            \2/        
------------------------------ + -------------------
                             2      2           4/a\
1 - cos(2*a) + 2*(1 - cos(a))    sin (a) + 4*sin |-|
                                                 \2/
$$\frac{4 \sin^{2}{\left(\frac{a}{2} \right)} \sin{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)} + \sin^{2}{\left(a \right)}} + \frac{2 \cdot \left(2 \cos{\left(a \right)} - \cos{\left(2 a \right)} - 1\right)}{2 \left(- \cos{\left(a \right)} + 1\right)^{2} - \cos{\left(2 a \right)} + 1}$$
         4/a\                         
    4*sin |-|                         
          \2/                         
1 - ---------              2/a\       
        2             4*sin |-|       
     sin (a)                \2/       
------------- + ----------------------
         4/a\   /         4/a\\       
    4*sin |-|   |    4*sin |-||       
          \2/   |          \2/|       
1 + ---------   |1 + ---------|*sin(a)
        2       |        2    |       
     sin (a)    \     sin (a) /       
$$\frac{- \frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1}{\frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1} + \frac{4 \sin^{2}{\left(\frac{a}{2} \right)}}{\left(\frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1\right) \sin{\left(a \right)}}$$
                              //                              /    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 /                         /
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + \frac{\pi}{2}\right) \bmod \pi = 0 \\\left(\sin{\left(a \right)} + 1\right) \cot{\left(\frac{a}{2} + \frac{\pi}{4} \right)} & \text{otherwise} \end{cases}\right)$$
//     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 /                         /
$$\left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + \frac{\pi}{2}\right) \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} + \frac{\pi}{4} \right)}}{\cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
       2/a   pi\                            
    cos |- - --|                            
        \2   2 /                            
1 - ------------                            
         2/a\                 /a   pi\      
      cos |-|            2*cos|- - --|      
          \2/                 \2   2 /      
---------------- + -------------------------
       2/a   pi\   /       2/a   pi\\       
    cos |- - --|   |    cos |- - --||       
        \2   2 /   |        \2   2 /|    /a\
1 + ------------   |1 + ------------|*cos|-|
         2/a\      |         2/a\   |    \2/
      cos |-|      |      cos |-|   |       
          \2/      \          \2/   /       
$$\frac{1 - \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}} + \frac{2 \cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}\right) \cos{\left(\frac{a}{2} \right)}}$$
         2/a\                                    
      sec |-|                                    
          \2/                                    
1 - ------------                                 
       2/a   pi\                   /a\           
    sec |- - --|              2*sec|-|           
        \2   2 /                   \2/           
---------------- + ------------------------------
         2/a\      /         2/a\   \            
      sec |-|      |      sec |-|   |            
          \2/      |          \2/   |    /a   pi\
1 + ------------   |1 + ------------|*sec|- - --|
       2/a   pi\   |       2/a   pi\|    \2   2 /
    sec |- - --|   |    sec |- - --||            
        \2   2 /   \        \2   2 //            
$$\frac{- \frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1}{\frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1} + \frac{2 \sec{\left(\frac{a}{2} \right)}}{\left(\frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}$$
       2/pi   a\                            
    csc |-- - -|                            
        \2    2/                            
1 - ------------                            
         2/a\                 /pi   a\      
      csc |-|            2*csc|-- - -|      
          \2/                 \2    2/      
---------------- + -------------------------
       2/pi   a\   /       2/pi   a\\       
    csc |-- - -|   |    csc |-- - -||       
        \2    2/   |        \2    2/|    /a\
1 + ------------   |1 + ------------|*csc|-|
         2/a\      |         2/a\   |    \2/
      csc |-|      |      csc |-|   |       
          \2/      \          \2/   /       
$$\frac{1 - \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}}{1 + \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}} + \frac{2 \csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\left(1 + \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}\right) \csc{\left(\frac{a}{2} \right)}}$$
                                      //                       /    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))