2
-----------
________
/ 2
\/ 1 - x
$$\frac{2}{\sqrt{- x^{2} + 1}}$$
2*x
-----------
3/2
/ 2\
\1 - x /
$$\frac{2 x}{\left(- x^{2} + 1\right)^{\frac{3}{2}}}$$
/ 2 \
| 3*x |
2*|1 + ------|
| 2|
\ 1 - x /
--------------
3/2
/ 2\
\1 - x /
$$\frac{\frac{6 x^{2}}{- x^{2} + 1} + 2}{\left(- x^{2} + 1\right)^{\frac{3}{2}}}$$