/ / 1 \ \
| 2*|1 + ------| |
| | 2| |
| \ 1 + x / 2*(x - acot(x)) x*log(1 + 2*x)|
2*|- -------------- + --------------- + --------------|
| 1 + 2*x 2 2 |
| (1 + 2*x) / 2\ |
\ \1 + x / /
$$2 \left(\frac{x \log{\left(2 x + 1 \right)}}{\left(x^{2} + 1\right)^{2}} - \frac{2 \left(1 + \frac{1}{x^{2} + 1}\right)}{2 x + 1} + \frac{2 \left(x - \operatorname{acot}{\left(x \right)}\right)}{\left(2 x + 1\right)^{2}}\right)$$
/ / 2 \ \
| / 1 \ | 4*x | |
| 6*|1 + ------| |-1 + ------|*log(1 + 2*x) |
| | 2| | 2| |
| 8*(x - acot(x)) \ 1 + x / \ 1 + x / 6*x |
2*|- --------------- + -------------- - -------------------------- + -------------------|
| 3 2 2 2 |
| (1 + 2*x) (1 + 2*x) / 2\ / 2\ |
\ \1 + x / \1 + x / *(1 + 2*x)/
$$2 \left(\frac{6 x}{\left(2 x + 1\right) \left(x^{2} + 1\right)^{2}} + \frac{6 \left(1 + \frac{1}{x^{2} + 1}\right)}{\left(2 x + 1\right)^{2}} - \frac{8 \left(x - \operatorname{acot}{\left(x \right)}\right)}{\left(2 x + 1\right)^{3}} - \frac{\left(\frac{4 x^{2}}{x^{2} + 1} - 1\right) \log{\left(2 x + 1 \right)}}{\left(x^{2} + 1\right)^{2}}\right)$$