2
x
- ----------- + 2*x*acos(x)
________
/ 2
\/ 1 - x
$$- \frac{x^{2}}{\sqrt{- x^{2} + 1}} + 2 x \operatorname{acos}{\left (x \right )}$$
3
x 4*x
2*acos(x) - ----------- - -----------
3/2 ________
/ 2\ / 2
\1 - x / \/ 1 - x
$$- \frac{x^{3}}{\left(- x^{2} + 1\right)^{\frac{3}{2}}} - \frac{4 x}{\sqrt{- x^{2} + 1}} + 2 \operatorname{acos}{\left (x \right )}$$
/ 4 2 \
| 3*x 7*x |
-|6 + --------- + ------|
| 2 2|
| / 2\ 1 - x |
\ \1 - x / /
--------------------------
________
/ 2
\/ 1 - x
$$- \frac{1}{\sqrt{- x^{2} + 1}} \left(\frac{3 x^{4}}{\left(- x^{2} + 1\right)^{2}} + \frac{7 x^{2}}{- x^{2} + 1} + 6\right)$$