/ 2 \
x ___ | x |
------ + atan(x) 2*\/ x *|-1 + ------|
2 | 2|
1 + x atan(x) \ 1 + x /
---------------- - ------- - ---------------------
___ ___ 2
\/ x 4*\/ x 1 + x
$$- \frac{2 \sqrt{x} \left(\frac{x^{2}}{x^{2} + 1} - 1\right)}{x^{2} + 1} + \frac{\frac{x}{x^{2} + 1} + \operatorname{atan}{\left(x \right)}}{\sqrt{x}} - \frac{\operatorname{atan}{\left(x \right)}}{4 \sqrt{x}}$$
/ 2 \ / 2 \
/ x \ | x | 3/2 | x |
3*|------ + atan(x)| 3*|-1 + ------| 8*x *|-1 + ------|
| 2 | | 2| | 2|
\1 + x / 3*atan(x) \ 1 + x / \ 1 + x /
- -------------------- + --------- - --------------- + --------------------
3/2 3/2 ___ / 2\ 2
4*x 8*x \/ x *\1 + x / / 2\
\1 + x /
$$\frac{8 x^{\frac{3}{2}} \left(\frac{x^{2}}{x^{2} + 1} - 1\right)}{\left(x^{2} + 1\right)^{2}} - \frac{3 \left(\frac{x^{2}}{x^{2} + 1} - 1\right)}{\sqrt{x} \left(x^{2} + 1\right)} - \frac{3 \left(\frac{x}{x^{2} + 1} + \operatorname{atan}{\left(x \right)}\right)}{4 x^{\frac{3}{2}}} + \frac{3 \operatorname{atan}{\left(x \right)}}{8 x^{\frac{3}{2}}}$$