2*x
2*asin(x) + -----------
________
/ 2
\/ 1 - x
$$\frac{2 x}{\sqrt{- x^{2} + 1}} + 2 \operatorname{asin}{\left (x \right )}$$
/ 2 \
| x |
2*|2 + ------|
| 2|
\ 1 - x /
--------------
________
/ 2
\/ 1 - x
$$\frac{\frac{2 x^{2}}{- x^{2} + 1} + 4}{\sqrt{- x^{2} + 1}}$$
/ 2 \
| 3*x |
2*x*|4 + ------|
| 2|
\ 1 - x /
----------------
3/2
/ 2\
\1 - x /
$$\frac{2 x}{\left(- x^{2} + 1\right)^{\frac{3}{2}}} \left(\frac{3 x^{2}}{- x^{2} + 1} + 4\right)$$