3/ ___\
2*atan \\/ x /
--------------
___
\/ x *(1 + x)
$$\frac{2 \operatorname{atan}^{3}{\left(\sqrt{x} \right)}}{\sqrt{x} \left(x + 1\right)}$$
/ / ___\ / ___\\
2/ ___\ | atan\\/ x / 3 2*atan\\/ x /|
atan \\/ x /*|- ----------- + --------- - -------------|
| 3/2 x*(1 + x) ___ |
\ x \/ x *(1 + x)/
--------------------------------------------------------
1 + x
$$\frac{\left(- \frac{2 \operatorname{atan}{\left(\sqrt{x} \right)}}{\sqrt{x} \left(x + 1\right)} + \frac{3}{x \left(x + 1\right)} - \frac{\operatorname{atan}{\left(\sqrt{x} \right)}}{x^{\frac{3}{2}}}\right) \operatorname{atan}^{2}{\left(\sqrt{x} \right)}}{x + 1}$$
/ 2/ ___\ / ___\ 2/ ___\ 2/ ___\ / ___\\
| 3 3*atan \\/ x / 9*atan\\/ x / 2*atan \\/ x / 4*atan \\/ x / 9*atan\\/ x /| / ___\
|------------- + -------------- - ------------- + -------------- + -------------- - -------------|*atan\\/ x /
| 3/2 2 5/2 2 3/2 ___ 2 2 |
\x *(1 + x) 2*x x*(1 + x) x *(1 + x) \/ x *(1 + x) 2*x *(1 + x)/
--------------------------------------------------------------------------------------------------------------
1 + x
$$\frac{\left(\frac{4 \operatorname{atan}^{2}{\left(\sqrt{x} \right)}}{\sqrt{x} \left(x + 1\right)^{2}} - \frac{9 \operatorname{atan}{\left(\sqrt{x} \right)}}{x \left(x + 1\right)^{2}} - \frac{9 \operatorname{atan}{\left(\sqrt{x} \right)}}{2 x^{2} \left(x + 1\right)} + \frac{2 \operatorname{atan}^{2}{\left(\sqrt{x} \right)}}{x^{\frac{3}{2}} \left(x + 1\right)} + \frac{3 \operatorname{atan}^{2}{\left(\sqrt{x} \right)}}{2 x^{\frac{5}{2}}} + \frac{3}{x^{\frac{3}{2}} \left(x + 1\right)^{2}}\right) \operatorname{atan}{\left(\sqrt{x} \right)}}{x + 1}$$