2
2*x x
------- - -----------------
atan(x) / 2\ 2
\1 + x /*atan (x)
$$- \frac{x^{2}}{\left(x^{2} + 1\right) \operatorname{atan}^{2}{\left (x \right )}} + \frac{2 x}{\operatorname{atan}{\left (x \right )}}$$
/ 2 3 \
| x x 2*x |
2*|1 + ------------------ + ----------------- - ----------------|
| 2 2 / 2\ |
| / 2\ 2 / 2\ \1 + x /*atan(x)|
\ \1 + x / *atan (x) \1 + x / *atan(x) /
-----------------------------------------------------------------
atan(x)
$$\frac{1}{\operatorname{atan}{\left (x \right )}} \left(\frac{2 x^{3}}{\left(x^{2} + 1\right)^{2} \operatorname{atan}{\left (x \right )}} + \frac{2 x^{2}}{\left(x^{2} + 1\right)^{2} \operatorname{atan}^{2}{\left (x \right )}} - \frac{4 x}{\left(x^{2} + 1\right) \operatorname{atan}{\left (x \right )}} + 2\right)$$
/ 4 2 3 2 \
| 4*x 7*x 6*x 3*x 6*x |
2*|-3 - --------- + ------ - ----------------- - ------------------ + ----------------|
| 2 2 2 2 / 2\ |
| / 2\ 1 + x / 2\ / 2\ 2 \1 + x /*atan(x)|
\ \1 + x / \1 + x / *atan(x) \1 + x / *atan (x) /
---------------------------------------------------------------------------------------
/ 2\ 2
\1 + x /*atan (x)
$$\frac{1}{\left(x^{2} + 1\right) \operatorname{atan}^{2}{\left (x \right )}} \left(- \frac{8 x^{4}}{\left(x^{2} + 1\right)^{2}} - \frac{12 x^{3}}{\left(x^{2} + 1\right)^{2} \operatorname{atan}{\left (x \right )}} + \frac{14 x^{2}}{x^{2} + 1} - \frac{6 x^{2}}{\left(x^{2} + 1\right)^{2} \operatorname{atan}^{2}{\left (x \right )}} + \frac{12 x}{\left(x^{2} + 1\right) \operatorname{atan}{\left (x \right )}} - 6\right)$$