4
5*atan (x)
----------
2
1 + x
$$\frac{5 \operatorname{atan}^{4}{\left(x \right)}}{x^{2} + 1}$$
3
10*atan (x)*(2 - x*atan(x))
---------------------------
2
/ 2\
\1 + x /
$$\frac{10 \left(- x \operatorname{atan}{\left(x \right)} + 2\right) \operatorname{atan}^{3}{\left(x \right)}}{\left(x^{2} + 1\right)^{2}}$$
/ 2 2 \
2 | 2 6 12*x*atan(x) 4*x *atan (x)|
10*atan (x)*|- atan (x) + ------ - ------------ + -------------|
| 2 2 2 |
\ 1 + x 1 + x 1 + x /
----------------------------------------------------------------
2
/ 2\
\1 + x /
$$\frac{10 \cdot \left(\frac{4 x^{2} \operatorname{atan}^{2}{\left(x \right)}}{x^{2} + 1} - \frac{12 x \operatorname{atan}{\left(x \right)}}{x^{2} + 1} - \operatorname{atan}^{2}{\left(x \right)} + \frac{6}{x^{2} + 1}\right) \operatorname{atan}^{2}{\left(x \right)}}{\left(x^{2} + 1\right)^{2}}$$