Подробное решение
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Применяем правило производной умножения:
; найдём :
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В силу правила, применим: получим
; найдём :
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Не могу найти шаги в поиске этой производной.
Но производная
В результате:
Ответ:
/ 2 \
cos(x) cos(x) |cos (x) |
sin (x) + x*sin (x)*|------- - log(sin(x))*sin(x)|
\ sin(x) /
$$x \left(- \log{\left(\sin{\left(x \right)} \right)} \sin{\left(x \right)} + \frac{\cos^{2}{\left(x \right)}}{\sin{\left(x \right)}}\right) \sin^{\cos{\left(x \right)}}{\left(x \right)} + \sin^{\cos{\left(x \right)}}{\left(x \right)}$$
/ / 2 \ \
| |/ 2 \ / 2 \ | 2 |
cos(x) | || cos (x)| | cos (x) | | 2*cos (x)|
sin (x)*|x*||log(sin(x))*sin(x) - -------| - |3 + ------- + log(sin(x))|*cos(x)| - 2*log(sin(x))*sin(x) + ---------|
| |\ sin(x)/ | 2 | | sin(x) |
\ \ \ sin (x) / / /
$$\left(x \left(\left(\log{\left(\sin{\left(x \right)} \right)} \sin{\left(x \right)} - \frac{\cos^{2}{\left(x \right)}}{\sin{\left(x \right)}}\right)^{2} - \left(\log{\left(\sin{\left(x \right)} \right)} + 3 + \frac{\cos^{2}{\left(x \right)}}{\sin^{2}{\left(x \right)}}\right) \cos{\left(x \right)}\right) - 2 \log{\left(\sin{\left(x \right)} \right)} \sin{\left(x \right)} + \frac{2 \cos^{2}{\left(x \right)}}{\sin{\left(x \right)}}\right) \sin^{\cos{\left(x \right)}}{\left(x \right)}$$
/ 2 / 3 \ \
| / 2 \ | / 2 \ 2 4 / 2 \ / 2 \ | / 2 \ |
cos(x) | | cos (x)| | | cos (x)| 2*cos (x) 2*cos (x) | cos (x)| | cos (x) | | | cos (x) | |
sin (x)*|3*|log(sin(x))*sin(x) - -------| + x*|- |log(sin(x))*sin(x) - -------| + 3*sin(x) + log(sin(x))*sin(x) + --------- + --------- + 3*|log(sin(x))*sin(x) - -------|*|3 + ------- + log(sin(x))|*cos(x)| - 3*|3 + ------- + log(sin(x))|*cos(x)|
| \ sin(x)/ | \ sin(x)/ sin(x) 3 \ sin(x)/ | 2 | | | 2 | |
\ \ sin (x) \ sin (x) / / \ sin (x) / /
$$\left(x \left(- \left(\log{\left(\sin{\left(x \right)} \right)} \sin{\left(x \right)} - \frac{\cos^{2}{\left(x \right)}}{\sin{\left(x \right)}}\right)^{3} + 3 \left(\log{\left(\sin{\left(x \right)} \right)} \sin{\left(x \right)} - \frac{\cos^{2}{\left(x \right)}}{\sin{\left(x \right)}}\right) \left(\log{\left(\sin{\left(x \right)} \right)} + 3 + \frac{\cos^{2}{\left(x \right)}}{\sin^{2}{\left(x \right)}}\right) \cos{\left(x \right)} + \log{\left(\sin{\left(x \right)} \right)} \sin{\left(x \right)} + 3 \sin{\left(x \right)} + \frac{2 \cos^{2}{\left(x \right)}}{\sin{\left(x \right)}} + \frac{2 \cos^{4}{\left(x \right)}}{\sin^{3}{\left(x \right)}}\right) + 3 \left(\log{\left(\sin{\left(x \right)} \right)} \sin{\left(x \right)} - \frac{\cos^{2}{\left(x \right)}}{\sin{\left(x \right)}}\right)^{2} - 3 \left(\log{\left(\sin{\left(x \right)} \right)} + 3 + \frac{\cos^{2}{\left(x \right)}}{\sin^{2}{\left(x \right)}}\right) \cos{\left(x \right)}\right) \sin^{\cos{\left(x \right)}}{\left(x \right)}$$