/ / 2 \\
|/ 2\ x*\x + 1/| -x / 2 \ -x
|\1 + 3*x /*acot(x) - ----------|*e - x*\x + 1/*acot(x)*e
| 2 |
\ 1 + x /
$$- x \left(x^{2} + 1\right) e^{- x} \operatorname{acot}{\left(x \right)} + \left(- \frac{x \left(x^{2} + 1\right)}{x^{2} + 1} + \left(3 x^{2} + 1\right) \operatorname{acot}{\left(x \right)}\right) e^{- x}$$
/ / 2\ 2 \
| 2*\1 + 3*x / / 2\ 2*x / 2\ | -x
|2*x - ------------ - 2*\1 + 3*x /*acot(x) + ------ + 6*x*acot(x) + x*\1 + x /*acot(x)|*e
| 2 2 |
\ 1 + x 1 + x /
$$\left(\frac{2 x^{2}}{x^{2} + 1} + x \left(x^{2} + 1\right) \operatorname{acot}{\left(x \right)} + 6 x \operatorname{acot}{\left(x \right)} + 2 x - 2 \left(3 x^{2} + 1\right) \operatorname{acot}{\left(x \right)} - \frac{2 \left(3 x^{2} + 1\right)}{x^{2} + 1}\right) e^{- x}$$
/ / 2 \\
| | 4*x ||
| 2*x*|-1 + ------||
| / 2\ 2 / 2\ | 2||
| 6*\1 + 3*x / / 2\ 6*x 18*x / 2\ 6*x*\1 + 3*x / \ 1 + x /| -x
-|-6*acot(x) + 3*x - ------------ - 3*\1 + 3*x /*acot(x) + ------ + ------ + 18*x*acot(x) + x*\1 + x /*acot(x) - -------------- + -----------------|*e
| 2 2 2 2 2 |
| 1 + x 1 + x 1 + x / 2\ 1 + x |
\ \1 + x / /
$$- \left(\frac{6 x^{2}}{x^{2} + 1} + x \left(x^{2} + 1\right) \operatorname{acot}{\left(x \right)} + 18 x \operatorname{acot}{\left(x \right)} + 3 x + \frac{2 x \left(\frac{4 x^{2}}{x^{2} + 1} - 1\right)}{x^{2} + 1} + \frac{18 x}{x^{2} + 1} - \frac{6 x \left(3 x^{2} + 1\right)}{\left(x^{2} + 1\right)^{2}} - 3 \left(3 x^{2} + 1\right) \operatorname{acot}{\left(x \right)} - 6 \operatorname{acot}{\left(x \right)} - \frac{6 \left(3 x^{2} + 1\right)}{x^{2} + 1}\right) e^{- x}$$