Подробное решение
-
Не могу найти шаги в поиске этой производной.
Но производная
Ответ:
x
/2*atan(x)\ / x /2*atan(x)\\
|---------| *|---------------- + log|---------||
\ pi / |/ 2\ \ pi /|
\\1 + x /*atan(x) /
$$\left(\frac{2 \operatorname{atan}{\left(x \right)}}{\pi}\right)^{x} \left(\log{\left(\frac{2 \operatorname{atan}{\left(x \right)}}{\pi} \right)} + \frac{x}{\left(x^{2} + 1\right) \operatorname{atan}{\left(x \right)}}\right)$$
/ 2 \
| 2*x x |
| -2 + ------ + ----------------|
x | 2 2 / 2\ |
/2*atan(x)\ |/ x /2*atan(x)\\ 1 + x \1 + x /*atan(x)|
|---------| *||---------------- + log|---------|| - ------------------------------|
\ pi / ||/ 2\ \ pi /| / 2\ |
\\\1 + x /*atan(x) / \1 + x /*atan(x) /
$$\left(\frac{2 \operatorname{atan}{\left(x \right)}}{\pi}\right)^{x} \left(\left(\log{\left(\frac{2 \operatorname{atan}{\left(x \right)}}{\pi} \right)} + \frac{x}{\left(x^{2} + 1\right) \operatorname{atan}{\left(x \right)}}\right)^{2} - \frac{\frac{2 x^{2}}{x^{2} + 1} - 2 + \frac{x}{\left(x^{2} + 1\right) \operatorname{atan}{\left(x \right)}}}{\left(x^{2} + 1\right) \operatorname{atan}{\left(x \right)}}\right)$$
/ 3 2 / 2 \\
| 3 8*x 2*x 6*x / x /2*atan(x)\\ | 2*x x ||
| -8*x - ------- + ------ + ----------------- + ---------------- 3*|---------------- + log|---------||*|-2 + ------ + ----------------||
x | 3 atan(x) 2 / 2\ 2 / 2\ |/ 2\ \ pi /| | 2 / 2\ ||
/2*atan(x)\ |/ x /2*atan(x)\\ 1 + x \1 + x /*atan (x) \1 + x /*atan(x) \\1 + x /*atan(x) / \ 1 + x \1 + x /*atan(x)/|
|---------| *||---------------- + log|---------|| + -------------------------------------------------------------- - ----------------------------------------------------------------------|
\ pi / ||/ 2\ \ pi /| 2 / 2\ |
|\\1 + x /*atan(x) / / 2\ \1 + x /*atan(x) |
\ \1 + x / *atan(x) /
$$\left(\frac{2 \operatorname{atan}{\left(x \right)}}{\pi}\right)^{x} \left(\left(\log{\left(\frac{2 \operatorname{atan}{\left(x \right)}}{\pi} \right)} + \frac{x}{\left(x^{2} + 1\right) \operatorname{atan}{\left(x \right)}}\right)^{3} - \frac{3 \left(\log{\left(\frac{2 \operatorname{atan}{\left(x \right)}}{\pi} \right)} + \frac{x}{\left(x^{2} + 1\right) \operatorname{atan}{\left(x \right)}}\right) \left(\frac{2 x^{2}}{x^{2} + 1} - 2 + \frac{x}{\left(x^{2} + 1\right) \operatorname{atan}{\left(x \right)}}\right)}{\left(x^{2} + 1\right) \operatorname{atan}{\left(x \right)}} + \frac{\frac{8 x^{3}}{x^{2} + 1} - 8 x + \frac{6 x^{2}}{\left(x^{2} + 1\right) \operatorname{atan}{\left(x \right)}} - \frac{3}{\operatorname{atan}{\left(x \right)}} + \frac{2 x}{\left(x^{2} + 1\right) \operatorname{atan}^{2}{\left(x \right)}}}{\left(x^{2} + 1\right)^{2} \operatorname{atan}{\left(x \right)}}\right)$$