/ 6 3 \
| 2 3*x 3*x |
3*x*|- ----------- - ----------- + ------------------|
| ________ 3/2 / 6\ / 3\|
| / 6 / 6\ \-1 + x /*acos\x /|
\ \/ 1 - x \1 - x / /
------------------------------------------------------
/ 3\
acos\x / $$\frac{3 x}{\operatorname{acos}{\left (x^{3} \right )}} \left(- \frac{3 x^{6}}{\left(- x^{6} + 1\right)^{\frac{3}{2}}} + \frac{3 x^{3}}{\left(x^{6} - 1\right) \operatorname{acos}{\left (x^{3} \right )}} - \frac{2}{\sqrt{- x^{6} + 1}}\right)$$
/ 6 12 9 6 3 \
| 2 27*x 27*x 27*x 18*x 18*x |
3*|- ----------- - ----------- - ----------- - ------------------- - --------------------- + ------------------|
| ________ 3/2 5/2 2 3/2 / 6\ / 3\|
| / 6 / 6\ / 6\ / 6\ / 3\ / 6\ 2/ 3\ \-1 + x /*acos\x /|
\ \/ 1 - x \1 - x / \1 - x / \-1 + x / *acos\x / \1 - x / *acos \x / /
----------------------------------------------------------------------------------------------------------------
/ 3\
acos\x / $$\frac{1}{\operatorname{acos}{\left (x^{3} \right )}} \left(- \frac{81 x^{12}}{\left(- x^{6} + 1\right)^{\frac{5}{2}}} - \frac{81 x^{9}}{\left(x^{6} - 1\right)^{2} \operatorname{acos}{\left (x^{3} \right )}} - \frac{81 x^{6}}{\left(- x^{6} + 1\right)^{\frac{3}{2}}} - \frac{54 x^{6}}{\left(- x^{6} + 1\right)^{\frac{3}{2}} \operatorname{acos}^{2}{\left (x^{3} \right )}} + \frac{54 x^{3}}{\left(x^{6} - 1\right) \operatorname{acos}{\left (x^{3} \right )}} - \frac{6}{\sqrt{- x^{6} + 1}}\right)$$