3 / 3 \
2 / 4\ 12*x *\x + 3/
3*x *acos\3*x / - --------------
__________
/ 8
\/ 1 - 9*x
$$- \frac{12 x^{3} \left(x^{3} + 3\right)}{\sqrt{- 9 x^{8} + 1}} + 3 x^{2} \operatorname{acos}{\left(3 x^{4} \right)}$$
/ / 8 \ \
| | 12*x | / 3\ |
| 6*x*|-1 + ---------|*\3 + x / |
| 4 | 8| |
| 12*x \ -1 + 9*x / / 4\|
6*x*|- ------------- + ----------------------------- + acos\3*x /|
| __________ __________ |
| / 8 / 8 |
\ \/ 1 - 9*x \/ 1 - 9*x /
$$6 x \left(- \frac{12 x^{4}}{\sqrt{- 9 x^{8} + 1}} + \frac{6 x \left(x^{3} + 3\right) \left(\frac{12 x^{8}}{9 x^{8} - 1} - 1\right)}{\sqrt{- 9 x^{8} + 1}} + \operatorname{acos}{\left(3 x^{4} \right)}\right)$$
/ / 8 16 \ \
| / 8 \ / 3\ | 78*x 648*x | |
| 4 | 12*x | 12*x*\3 + x /*|1 - --------- + ------------| |
| 54*x *|-1 + ---------| | 8 2| |
| 4 | 8| | -1 + 9*x / 8\ | |
| 36*x \ -1 + 9*x / \ \-1 + 9*x / / / 4\|
6*|- ------------- + ---------------------- - -------------------------------------------- + acos\3*x /|
| __________ __________ __________ |
| / 8 / 8 / 8 |
\ \/ 1 - 9*x \/ 1 - 9*x \/ 1 - 9*x /
$$6 \cdot \left(\frac{54 x^{4} \cdot \left(\frac{12 x^{8}}{9 x^{8} - 1} - 1\right)}{\sqrt{- 9 x^{8} + 1}} - \frac{36 x^{4}}{\sqrt{- 9 x^{8} + 1}} - \frac{12 x \left(x^{3} + 3\right) \left(\frac{648 x^{16}}{\left(9 x^{8} - 1\right)^{2}} - \frac{78 x^{8}}{9 x^{8} - 1} + 1\right)}{\sqrt{- 9 x^{8} + 1}} + \operatorname{acos}{\left(3 x^{4} \right)}\right)$$