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(sin(pi*x/2))^(x/(1-2*x))

Производная (sin(pi*x/2))^(x/(1-2*x))

Функция f() - производная -го порядка в точке
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Кусочно-заданная:

Решение

Вы ввели [src]
              x   
           -------
           1 - 2*x
/   /pi*x\\       
|sin|----||       
\   \ 2  //       
$$\sin^{\frac{x}{- 2 x + 1}}{\left(\frac{\pi x}{2} \right)}$$
  /              x   \
  |           -------|
  |           1 - 2*x|
d |/   /pi*x\\       |
--||sin|----||       |
dx\\   \ 2  //       /
$$\frac{d}{d x} \sin^{\frac{x}{- 2 x + 1}}{\left(\frac{\pi x}{2} \right)}$$
Подробное решение
  1. Не могу найти шаги в поиске этой производной.

    Но производная

  2. Теперь упростим:


Ответ:

График
Первая производная [src]
              x                                                                   
           ------- /                                                    /pi*x\   \
           1 - 2*x |                                            pi*x*cos|----|   |
/   /pi*x\\        |/   1         2*x    \    /   /pi*x\\               \ 2  /   |
|sin|----||       *||------- + ----------|*log|sin|----|| + ---------------------|
\   \ 2  //        ||1 - 2*x            2|    \   \ 2  //                  /pi*x\|
                   |\          (1 - 2*x) /                  2*(1 - 2*x)*sin|----||
                   \                                                       \ 2  //
$$\left(\left(\frac{2 x}{\left(- 2 x + 1\right)^{2}} + \frac{1}{- 2 x + 1}\right) \log{\left(\sin{\left(\frac{\pi x}{2} \right)} \right)} + \frac{\pi x \cos{\left(\frac{\pi x}{2} \right)}}{2 \cdot \left(- 2 x + 1\right) \sin{\left(\frac{\pi x}{2} \right)}}\right) \sin^{\frac{x}{- 2 x + 1}}{\left(\frac{\pi x}{2} \right)}$$
Вторая производная [src]
                    /                                                             2                                                                                                                           \
                    |        /                                             /pi*x\\                                                                                                                            |
                    |        |                                     pi*x*cos|----||                                                                                                                            |
                    |        |    /       2*x   \    /   /pi*x\\           \ 2  /|                                                                                                                            |
             -x     |        |- 2*|-1 + --------|*log|sin|----|| + --------------|                                                                                                                            |
           -------- |        |    \     -1 + 2*x/    \   \ 2  //        /pi*x\   |      /       2*x   \    /   /pi*x\\         /pi*x\      /       2*x   \    /pi*x\       2    2/pi*x\              /pi*x\   |
           -1 + 2*x |    2   |                                       sin|----|   |    4*|-1 + --------|*log|sin|----||   pi*cos|----|   pi*|-1 + --------|*cos|----|   x*pi *cos |----|      pi*x*cos|----|   |
/   /pi*x\\         |x*pi    \                                          \ 2  /   /      \     -1 + 2*x/    \   \ 2  //         \ 2  /      \     -1 + 2*x/    \ 2  /             \ 2  /              \ 2  /   |
|sin|----||        *|----- + ------------------------------------------------------ - -------------------------------- - ------------ + ---------------------------- + ---------------- + --------------------|
\   \ 2  //         |  4                          4*(-1 + 2*x)                                    -1 + 2*x                    /pi*x\                 /pi*x\                   2/pi*x\                   /pi*x\|
                    |                                                                                                    2*sin|----|            2*sin|----|              4*sin |----|     (-1 + 2*x)*sin|----||
                    \                                                                                                         \ 2  /                 \ 2  /                    \ 2  /                   \ 2  //
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                    -1 + 2*x                                                                                                   
$$\frac{\left(\frac{\pi^{2} x}{4} + \frac{\pi^{2} x \cos^{2}{\left(\frac{\pi x}{2} \right)}}{4 \sin^{2}{\left(\frac{\pi x}{2} \right)}} + \frac{\pi \left(\frac{2 x}{2 x - 1} - 1\right) \cos{\left(\frac{\pi x}{2} \right)}}{2 \sin{\left(\frac{\pi x}{2} \right)}} - \frac{4 \cdot \left(\frac{2 x}{2 x - 1} - 1\right) \log{\left(\sin{\left(\frac{\pi x}{2} \right)} \right)}}{2 x - 1} + \frac{\left(- 2 \cdot \left(\frac{2 x}{2 x - 1} - 1\right) \log{\left(\sin{\left(\frac{\pi x}{2} \right)} \right)} + \frac{\pi x \cos{\left(\frac{\pi x}{2} \right)}}{\sin{\left(\frac{\pi x}{2} \right)}}\right)^{2}}{4 \cdot \left(2 x - 1\right)} + \frac{\pi x \cos{\left(\frac{\pi x}{2} \right)}}{\left(2 x - 1\right) \sin{\left(\frac{\pi x}{2} \right)}} - \frac{\pi \cos{\left(\frac{\pi x}{2} \right)}}{2 \sin{\left(\frac{\pi x}{2} \right)}}\right) \sin^{- \frac{x}{2 x - 1}}{\left(\frac{\pi x}{2} \right)}}{2 x - 1}$$
Третья производная [src]
                     /                                                                                   3                                                                                                                                                                                                                                                                                                                                                                                                                                                \ 
                     |                              /                                             /pi*x\\                                                                      /                                             /pi*x\\ /           /       2*x   \    /   /pi*x\\           /pi*x\       2    2/pi*x\        /       2*x   \    /pi*x\               /pi*x\  \                                                                                                                                                                              | 
                     |                              |                                     pi*x*cos|----||                                                                      |                                     pi*x*cos|----|| |        16*|-1 + --------|*log|sin|----||   2*pi*cos|----|   x*pi *cos |----|   2*pi*|-1 + --------|*cos|----|     4*pi*x*cos|----|  |                                                                                                                                                                              | 
                     |                              |    /       2*x   \    /   /pi*x\\           \ 2  /|                                                                      |    /       2*x   \    /   /pi*x\\           \ 2  /| |    2      \     -1 + 2*x/    \   \ 2  //           \ 2  /             \ 2  /        \     -1 + 2*x/    \ 2  /               \ 2  /  |                                                                                                                                                                              | 
              -x     |                              |- 2*|-1 + --------|*log|sin|----|| + --------------|                                                                    3*|- 2*|-1 + --------|*log|sin|----|| + --------------|*|x*pi  - --------------------------------- - -------------- + ---------------- + ------------------------------ + --------------------|                                                                                                                                                                              | 
            -------- |          2 /       2*x   \   |    \     -1 + 2*x/    \   \ 2  //        /pi*x\   |                  /       2*x   \    /   /pi*x\\     2    2/pi*x\     |    \     -1 + 2*x/    \   \ 2  //        /pi*x\   | |                     -1 + 2*x                    /pi*x\            2/pi*x\                   /pi*x\                            /pi*x\|              /pi*x\          3    3/pi*x\       3    /pi*x\     2    2/pi*x\ /       2*x   \          2    2/pi*x\                  /pi*x\          /       2*x   \    /pi*x\| 
            -1 + 2*x |    2   pi *|-1 + --------|   |                                       sin|----|   |         2     24*|-1 + --------|*log|sin|----||   pi *cos |----|     |                                       sin|----|   | |                                              sin|----|         sin |----|                sin|----|              (-1 + 2*x)*sin|----||      2*pi*cos|----|      x*pi *cos |----|   x*pi *cos|----|   pi *cos |----|*|-1 + --------|      x*pi *cos |----|        4*pi*x*cos|----|     4*pi*|-1 + --------|*cos|----|| 
 /   /pi*x\\         |  pi        \     -1 + 2*x/   \                                          \ 2  /   /     x*pi         \     -1 + 2*x/    \   \ 2  //           \ 2  /     \                                          \ 2  /   / \                                                 \ 2  /             \ 2  /                   \ 2  /                            \ 2  //              \ 2  /                \ 2  /            \ 2  /           \ 2  / \     -1 + 2*x/                \ 2  /                  \ 2  /          \     -1 + 2*x/    \ 2  /| 
-|sin|----||        *|- --- + ------------------- + ------------------------------------------------------ + -------- - --------------------------------- - -------------- + ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- - -------------------- + ---------------- + --------------- + ------------------------------ + --------------------- + --------------------- + ------------------------------| 
 \   \ 2  //         |   2             4                                            2                        -1 + 2*x                        2                    2/pi*x\                                                                                              8*(-1 + 2*x)                                                                                                          /pi*x\          3/pi*x\            /pi*x\                   2/pi*x\                          2/pi*x\             2    /pi*x\                      /pi*x\     | 
                     |                                                  8*(-1 + 2*x)                                               (-1 + 2*x)                2*sin |----|                                                                                                                                                                                                      (-1 + 2*x)*sin|----|     4*sin |----|       4*sin|----|              4*sin |----|            (-1 + 2*x)*sin |----|   (-1 + 2*x) *sin|----|        (-1 + 2*x)*sin|----|     | 
                     \                                                                                                                                             \ 2  /                                                                                                                                                                                                                    \ 2  /           \ 2  /            \ 2  /                    \ 2  /                           \ 2  /                  \ 2  /                      \ 2  /     / 
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                                                                                                                                          -1 + 2*x                                                                                                                                                                                                                                                                          
$$- \frac{\left(\frac{\pi^{3} x \cos{\left(\frac{\pi x}{2} \right)}}{4 \sin{\left(\frac{\pi x}{2} \right)}} + \frac{\pi^{3} x \cos^{3}{\left(\frac{\pi x}{2} \right)}}{4 \sin^{3}{\left(\frac{\pi x}{2} \right)}} + \frac{\pi^{2} \cdot \left(\frac{2 x}{2 x - 1} - 1\right)}{4} + \frac{\pi^{2} \cdot \left(\frac{2 x}{2 x - 1} - 1\right) \cos^{2}{\left(\frac{\pi x}{2} \right)}}{4 \sin^{2}{\left(\frac{\pi x}{2} \right)}} + \frac{3 \left(- 2 \cdot \left(\frac{2 x}{2 x - 1} - 1\right) \log{\left(\sin{\left(\frac{\pi x}{2} \right)} \right)} + \frac{\pi x \cos{\left(\frac{\pi x}{2} \right)}}{\sin{\left(\frac{\pi x}{2} \right)}}\right) \left(\pi^{2} x + \frac{\pi^{2} x \cos^{2}{\left(\frac{\pi x}{2} \right)}}{\sin^{2}{\left(\frac{\pi x}{2} \right)}} + \frac{2 \pi \left(\frac{2 x}{2 x - 1} - 1\right) \cos{\left(\frac{\pi x}{2} \right)}}{\sin{\left(\frac{\pi x}{2} \right)}} - \frac{16 \cdot \left(\frac{2 x}{2 x - 1} - 1\right) \log{\left(\sin{\left(\frac{\pi x}{2} \right)} \right)}}{2 x - 1} + \frac{4 \pi x \cos{\left(\frac{\pi x}{2} \right)}}{\left(2 x - 1\right) \sin{\left(\frac{\pi x}{2} \right)}} - \frac{2 \pi \cos{\left(\frac{\pi x}{2} \right)}}{\sin{\left(\frac{\pi x}{2} \right)}}\right)}{8 \cdot \left(2 x - 1\right)} + \frac{\left(- 2 \cdot \left(\frac{2 x}{2 x - 1} - 1\right) \log{\left(\sin{\left(\frac{\pi x}{2} \right)} \right)} + \frac{\pi x \cos{\left(\frac{\pi x}{2} \right)}}{\sin{\left(\frac{\pi x}{2} \right)}}\right)^{3}}{8 \left(2 x - 1\right)^{2}} + \frac{\pi^{2} x}{2 x - 1} + \frac{\pi^{2} x \cos^{2}{\left(\frac{\pi x}{2} \right)}}{\left(2 x - 1\right) \sin^{2}{\left(\frac{\pi x}{2} \right)}} - \frac{\pi^{2}}{2} - \frac{\pi^{2} \cos^{2}{\left(\frac{\pi x}{2} \right)}}{2 \sin^{2}{\left(\frac{\pi x}{2} \right)}} + \frac{4 \pi \left(\frac{2 x}{2 x - 1} - 1\right) \cos{\left(\frac{\pi x}{2} \right)}}{\left(2 x - 1\right) \sin{\left(\frac{\pi x}{2} \right)}} - \frac{24 \cdot \left(\frac{2 x}{2 x - 1} - 1\right) \log{\left(\sin{\left(\frac{\pi x}{2} \right)} \right)}}{\left(2 x - 1\right)^{2}} + \frac{4 \pi x \cos{\left(\frac{\pi x}{2} \right)}}{\left(2 x - 1\right)^{2} \sin{\left(\frac{\pi x}{2} \right)}} - \frac{2 \pi \cos{\left(\frac{\pi x}{2} \right)}}{\left(2 x - 1\right) \sin{\left(\frac{\pi x}{2} \right)}}\right) \sin^{- \frac{x}{2 x - 1}}{\left(\frac{\pi x}{2} \right)}}{2 x - 1}$$
График
Производная (sin(pi*x/2))^(x/(1-2*x))