/ 2 \
| 2 21*acot(x) 21*x*acot (x)|
-2*|------ + ---------- + -------------|
| 9/5 2 2 |
|5*x / 2\ / 2\ |
\ \1 + x / \1 + x / /
$$- 2 \left(\frac{21 x \operatorname{acot}^{2}{\left(x \right)}}{\left(x^{2} + 1\right)^{2}} + \frac{21 \operatorname{acot}{\left(x \right)}}{\left(x^{2} + 1\right)^{2}} + \frac{2}{5 x^{\frac{9}{5}}}\right)$$
/ 2 2 2 \
| 7 6 7*acot (x) 28*x *acot (x) 42*x*acot(x)|
6*|--------- + -------- - ---------- + -------------- + ------------|
| 3 14/5 2 3 3 |
|/ 2\ 25*x / 2\ / 2\ / 2\ |
\\1 + x / \1 + x / \1 + x / \1 + x / /
$$6 \left(\frac{28 x^{2} \operatorname{acot}^{2}{\left(x \right)}}{\left(x^{2} + 1\right)^{3}} + \frac{42 x \operatorname{acot}{\left(x \right)}}{\left(x^{2} + 1\right)^{3}} - \frac{7 \operatorname{acot}^{2}{\left(x \right)}}{\left(x^{2} + 1\right)^{2}} + \frac{7}{\left(x^{2} + 1\right)^{3}} + \frac{6}{25 x^{\frac{14}{5}}}\right)$$