2
/ 2 \ /2\ 2*(2*x + 1)
\(2*x + 1) + x*(4 + 8*x)/*atan|-| - ------------
\x/ / 4 \
x*|1 + --|
| 2|
\ x /
$$\left(x \left(8 x + 4\right) + \left(2 x + 1\right)^{2}\right) \operatorname{atan}{\left(\frac{2}{x} \right)} - \frac{2 \left(2 x + 1\right)^{2}}{x \left(1 + \frac{4}{x^{2}}\right)}$$
/ 2 / 4 \ \
| (1 + 2*x) *|1 - -----------| |
| | 2 / 4 \| |
| | x *|1 + --|| |
| | | 2|| |
| /2\ \ \ x // (1 + 2*x)*(1 + 6*x)|
4*|2*(1 + 3*x)*atan|-| + ---------------------------- - -------------------|
| \x/ 2 / 4 \ 2 / 4 \ |
| x *|1 + --| x *|1 + --| |
| | 2| | 2| |
\ \ x / \ x / /
$$4 \left(2 \left(3 x + 1\right) \operatorname{atan}{\left(\frac{2}{x} \right)} + \frac{\left(1 - \frac{4}{x^{2} \left(1 + \frac{4}{x^{2}}\right)}\right) \left(2 x + 1\right)^{2}}{x^{2} \left(1 + \frac{4}{x^{2}}\right)} - \frac{\left(2 x + 1\right) \left(6 x + 1\right)}{x^{2} \left(1 + \frac{4}{x^{2}}\right)}\right)$$
/ 2 / 28 64 \ \
| (1 + 2*x) *|3 - ----------- + ------------| / 4 \|
| | 2 / 4 \ 2| 3*(1 + 2*x)*(1 + 6*x)*|1 - -----------||
| | x *|1 + --| 4 / 4 \ | | 2 / 4 \||
| | | 2| x *|1 + --| | | x *|1 + --|||
| | \ x / | 2| | | | 2|||
| /2\ 12*(1 + 3*x) \ \ x / / \ \ x //|
4*|6*atan|-| - ------------ - ------------------------------------------- + ---------------------------------------|
| \x/ 2 / 4 \ 3 / 4 \ 3 / 4 \ |
| x *|1 + --| x *|1 + --| x *|1 + --| |
| | 2| | 2| | 2| |
\ \ x / \ x / \ x / /
$$4 \left(6 \operatorname{atan}{\left(\frac{2}{x} \right)} - \frac{12 \left(3 x + 1\right)}{x^{2} \left(1 + \frac{4}{x^{2}}\right)} + \frac{3 \left(1 - \frac{4}{x^{2} \left(1 + \frac{4}{x^{2}}\right)}\right) \left(2 x + 1\right) \left(6 x + 1\right)}{x^{3} \left(1 + \frac{4}{x^{2}}\right)} - \frac{\left(2 x + 1\right)^{2} \left(3 - \frac{28}{x^{2} \left(1 + \frac{4}{x^{2}}\right)} + \frac{64}{x^{4} \left(1 + \frac{4}{x^{2}}\right)^{2}}\right)}{x^{3} \left(1 + \frac{4}{x^{2}}\right)}\right)$$