/ 2 \
|/ 1 x\ / 2*x x\ / x\|
2*||- ------ + e | + |--------- + e |*\acot(x) + e /|
|| 2 | | 2 | |
|\ 1 + x / |/ 2\ | |
\ \\1 + x / / /
$$2 \left(\left(\frac{2 x}{\left(x^{2} + 1\right)^{2}} + e^{x}\right) \left(e^{x} + \operatorname{acot}{\left(x \right)}\right) + \left(e^{x} - \frac{1}{x^{2} + 1}\right)^{2}\right)$$
/ / 2 \ \
|/ x\ | 2 8*x x| / 1 x\ / 2*x x\|
2*|\acot(x) + e /*|--------- - --------- + e | + 3*|- ------ + e |*|--------- + e ||
| | 2 3 | | 2 | | 2 ||
| |/ 2\ / 2\ | \ 1 + x / |/ 2\ ||
\ \\1 + x / \1 + x / / \\1 + x / //
$$2 \left(3 \left(\frac{2 x}{\left(x^{2} + 1\right)^{2}} + e^{x}\right) \left(e^{x} - \frac{1}{x^{2} + 1}\right) + \left(e^{x} + \operatorname{acot}{\left(x \right)}\right) \left(- \frac{8 x^{2}}{\left(x^{2} + 1\right)^{3}} + e^{x} + \frac{2}{\left(x^{2} + 1\right)^{2}}\right)\right)$$