2
2*x / 2\
- ----------- + acos\x /
________
/ 4
\/ 1 - x
$$- \frac{2 x^{2}}{\sqrt{- x^{4} + 1}} + \operatorname{acos}{\left (x^{2} \right )}$$
/ 4 \
| 2*x |
-2*x*|3 + ------|
| 4|
\ 1 - x /
-----------------
________
/ 4
\/ 1 - x
$$- \frac{2 x}{\sqrt{- x^{4} + 1}} \left(\frac{2 x^{4}}{- x^{4} + 1} + 3\right)$$
/ 8 4 \
| 12*x 16*x |
-2*|3 + --------- + ------|
| 2 4|
| / 4\ 1 - x |
\ \1 - x / /
---------------------------
________
/ 4
\/ 1 - x
$$- \frac{1}{\sqrt{- x^{4} + 1}} \left(\frac{24 x^{8}}{\left(- x^{4} + 1\right)^{2}} + \frac{32 x^{4}}{- x^{4} + 1} + 6\right)$$