/ / 1 \\
| x*|------- + 4*x||
| \atan(x) /|
-|-1 + -----------------|
| / 2\ |
\ 4*\1 + x / /
--------------------------
/ 2\ _________
3*\1 + x /*\/ atan(x)
$$- \frac{\frac{x \left(4 x + \frac{1}{\operatorname{atan}{\left(x \right)}}\right)}{4 \left(x^{2} + 1\right)} - 1}{3 \left(x^{2} + 1\right) \sqrt{\operatorname{atan}{\left(x \right)}}}$$
/ / 2 \\
| | 3 32*x 12*x ||
| x*|-8 + ----------------- + ------ + ----------------||
| | / 2\ 2 2 / 2\ ||
| 3 \ \1 + x /*atan (x) 1 + x \1 + x /*atan(x)/|
-|3*x + --------- - ------------------------------------------------------|
\ 4*atan(x) 8 /
----------------------------------------------------------------------------
2
/ 2\ _________
3*\1 + x / *\/ atan(x)
$$- \frac{- \frac{x \left(\frac{32 x^{2}}{x^{2} + 1} + \frac{12 x}{\left(x^{2} + 1\right) \operatorname{atan}{\left(x \right)}} - 8 + \frac{3}{\left(x^{2} + 1\right) \operatorname{atan}^{2}{\left(x \right)}}\right)}{8} + 3 x + \frac{3}{4 \operatorname{atan}{\left(x \right)}}}{3 \left(x^{2} + 1\right)^{2} \sqrt{\operatorname{atan}{\left(x \right)}}}$$