/ 2 / 2 \ \
| x / x \ | 4*x | |
2*|-1 + ------ + 2*x*|-acot(x) + ------| + x*|-1 + ------|*acot(x)|
| 2 | 2| | 2| |
\ 1 + x \ 1 + x / \ 1 + x / /
-------------------------------------------------------------------
2
/ 2\
\1 + x /
$$\frac{2 \left(\frac{x^{2}}{x^{2} + 1} + 2 x \left(\frac{x}{x^{2} + 1} - \operatorname{acot}{\left(x \right)}\right) + x \left(\frac{4 x^{2}}{x^{2} + 1} - 1\right) \operatorname{acot}{\left(x \right)} - 1\right)}{\left(x^{2} + 1\right)^{2}}$$
/ / 2 \ / 2 \ \
| | x | 2 | 2*x | |
| 10*x*|-1 + ------| 12*x *|-1 + ------|*acot(x)|
| / 2 \ | 2| | 2| |
| | 4*x | / x \ \ 1 + x / \ 1 + x / |
-2*|3*|-1 + ------|*|-acot(x) + ------| + ------------------ + ---------------------------|
| | 2| | 2| 2 2 |
\ \ 1 + x / \ 1 + x / 1 + x 1 + x /
-------------------------------------------------------------------------------------------
2
/ 2\
\1 + x /
$$- \frac{2 \left(\frac{12 x^{2} \left(\frac{2 x^{2}}{x^{2} + 1} - 1\right) \operatorname{acot}{\left(x \right)}}{x^{2} + 1} + \frac{10 x \left(\frac{x^{2}}{x^{2} + 1} - 1\right)}{x^{2} + 1} + 3 \left(\frac{x}{x^{2} + 1} - \operatorname{acot}{\left(x \right)}\right) \left(\frac{4 x^{2}}{x^{2} + 1} - 1\right)\right)}{\left(x^{2} + 1\right)^{2}}$$