2*atan(x) x
- --------- + -----------
3 3 / 2\
x x *\1 + x /
$$- \frac{2 \operatorname{atan}{\left(x \right)}}{x^{3}} + \frac{x}{x^{3} \left(x^{2} + 1\right)}$$
/ 1 2 3*atan(x)\
2*|- --------- - ----------- + ---------|
| 2 2 / 2\ 3 |
| / 2\ x *\1 + x / x |
\ \1 + x / /
-----------------------------------------
x
$$\frac{2 \left(- \frac{1}{\left(x^{2} + 1\right)^{2}} + \frac{3 \operatorname{atan}{\left(x \right)}}{x^{3}} - \frac{2}{x^{2} \left(x^{2} + 1\right)}\right)}{x}$$
/ 2 \
| 4*x |
| -1 + ------ |
| 2 |
| 6 1 + x 12*atan(x) 9 |
2*|--------- + ----------- - ---------- + -----------|
| 2 2 3 2 / 2\|
|/ 2\ / 2\ x x *\1 + x /|
\\1 + x / \1 + x / /
------------------------------------------------------
2
x
$$\frac{2 \left(\frac{\frac{4 x^{2}}{x^{2} + 1} - 1}{\left(x^{2} + 1\right)^{2}} + \frac{6}{\left(x^{2} + 1\right)^{2}} - \frac{12 \operatorname{atan}{\left(x \right)}}{x^{3}} + \frac{9}{x^{2} \left(x^{2} + 1\right)}\right)}{x^{2}}$$