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Другие калькуляторы

sin(4*pi+x) если x=-1

Выражение, которое надо упростить:

Решение

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

            
$$\begin{cases} 0 & \text{for}\: x \bmod \pi = 0 \\\begin{cases} 0 & \text{for}\: x \bmod \pi = 0 \\\sin{\left(x \right)} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}$$
/         0            for x mod pi = 0
|                                      
|         2                            
|--------------------     otherwise    

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

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

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

            
$$\begin{cases} 0 & \text{for}\: x \bmod \pi = 0 \\\frac{2 \csc{\left(\frac{x}{2} \right)}}{\left(\frac{\csc^{2}{\left(\frac{x}{2} \right)}}{\csc^{2}{\left(- \frac{x}{2} + \frac{\pi}{2} \right)}} + 1\right) \csc{\left(- \frac{x}{2} + \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}$$
Piecewise((0, Mod(x = pi, 0)), (2*csc(x/2)/((1 + csc(x/2)^2/csc(pi/2 - x/2)^2)*csc(pi/2 - x/2)), True))