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