/ 2 \
3 | 2 x *(-1 + 2*x*atan(x)) 10*x*atan(x)|
2*x *|10*atan (x) - --------------------- + ------------|
| 2 2 |
| / 2\ 1 + x |
\ \1 + x / /
$$2 x^{3} \left(- \frac{x^{2} \left(2 x \operatorname{atan}{\left(x \right)} - 1\right)}{\left(x^{2} + 1\right)^{2}} + \frac{10 x \operatorname{atan}{\left(x \right)}}{x^{2} + 1} + 10 \operatorname{atan}^{2}{\left(x \right)}\right)$$
/ / 2 \ \
| 3 | 3*x 4*x *atan(x) | |
| 2*x *|------ - ------------ + atan(x)| |
| 2 | 2 2 | |
2 | 2 15*x *(-1 + 2*x*atan(x)) \1 + x 1 + x / 60*x*atan(x)|
2*x *|30*atan (x) - ------------------------ - -------------------------------------- + ------------|
| 2 2 2 |
| / 2\ / 2\ 1 + x |
\ \1 + x / \1 + x / /
$$2 x^{2} \left(- \frac{2 x^{3} \left(- \frac{4 x^{2} \operatorname{atan}{\left(x \right)}}{x^{2} + 1} + \frac{3 x}{x^{2} + 1} + \operatorname{atan}{\left(x \right)}\right)}{\left(x^{2} + 1\right)^{2}} - \frac{15 x^{2} \left(2 x \operatorname{atan}{\left(x \right)} - 1\right)}{\left(x^{2} + 1\right)^{2}} + \frac{60 x \operatorname{atan}{\left(x \right)}}{x^{2} + 1} + 30 \operatorname{atan}^{2}{\left(x \right)}\right)$$