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