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Другие калькуляторы

sin(2*pi+a)+cos(pi+a)-sin(-a)+cos(-a) если a=1/3

Выражение, которое надо упростить:

Решение

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