2
1 x
------ - ------ - 2*x*atan(x)
2 2
1 + x 1 + x
$$- \frac{x^{2}}{x^{2} + 1} - 2 x \operatorname{atan}{\left(x \right)} + \frac{1}{x^{2} + 1}$$
/ 3 \
| x x 2*x |
2*|-atan(x) + --------- - --------- - ------|
| 2 2 2|
| / 2\ / 2\ 1 + x |
\ \1 + x / \1 + x / /
$$2 \left(\frac{x^{3}}{\left(x^{2} + 1\right)^{2}} - \frac{2 x}{x^{2} + 1} - \frac{x}{\left(x^{2} + 1\right)^{2}} - \operatorname{atan}{\left(x \right)}\right)$$
/ 4 2 2 \
| 1 4*x 4*x 7*x |
2*|-3 - ------ - --------- + --------- + ------|
| 2 2 2 2|
| 1 + x / 2\ / 2\ 1 + x |
\ \1 + x / \1 + x / /
------------------------------------------------
2
1 + x
$$\frac{2 \left(- \frac{4 x^{4}}{\left(x^{2} + 1\right)^{2}} + \frac{7 x^{2}}{x^{2} + 1} + \frac{4 x^{2}}{\left(x^{2} + 1\right)^{2}} - 3 - \frac{1}{x^{2} + 1}\right)}{x^{2} + 1}$$