/ 3 \
| x *(-4 + 5*x) x*(-8 + 15*x)|
2*|(-4 + 15*x)*acot(x) + ------------- - -------------|
| 2 2 |
| / 2\ 1 + x |
\ \1 + x / /
$$2 \left(\frac{x^{3} \left(5 x - 4\right)}{\left(x^{2} + 1\right)^{2}} - \frac{x \left(15 x - 8\right)}{x^{2} + 1} + \left(15 x - 4\right) \operatorname{acot}{\left(x \right)}\right)$$
/ / 2 \ \
| 2 | 4*x | |
| x *|-1 + ------|*(-4 + 5*x)|
| 2 | 2| |
| 3*(-4 + 15*x) 3*x *(-8 + 15*x) \ 1 + x / |
2*|15*acot(x) - ------------- + ---------------- - ---------------------------|
| 2 2 2 |
| 1 + x / 2\ / 2\ |
\ \1 + x / \1 + x / /
$$2 \left(- \frac{x^{2} \left(5 x - 4\right) \left(\frac{4 x^{2}}{x^{2} + 1} - 1\right)}{\left(x^{2} + 1\right)^{2}} + \frac{3 x^{2} \left(15 x - 8\right)}{\left(x^{2} + 1\right)^{2}} - \frac{3 \left(15 x - 4\right)}{x^{2} + 1} + 15 \operatorname{acot}{\left(x \right)}\right)$$