acos(3*x) 3
- --------- - ---------------
2 __________
x / 2
x*\/ 1 - 9*x
$$- \frac{3}{x \sqrt{- 9 x^{2} + 1}} - \frac{1}{x^{2}} \operatorname{acos}{\left (3 x \right )}$$
27 2*acos(3*x) 6
- ------------- + ----------- + ----------------
3/2 3 __________
/ 2\ x 2 / 2
\1 - 9*x / x *\/ 1 - 9*x
$$- \frac{27}{\left(- 9 x^{2} + 1\right)^{\frac{3}{2}}} + \frac{6}{x^{2} \sqrt{- 9 x^{2} + 1}} + \frac{2}{x^{3}} \operatorname{acos}{\left (3 x \right )}$$
/ 243*x 6 2*acos(3*x) 18 \
3*|- ------------- - ---------------- - ----------- + ---------------|
| 5/2 __________ 4 3/2|
| / 2\ 3 / 2 x / 2\ |
\ \1 - 9*x / x *\/ 1 - 9*x x*\1 - 9*x / /
$$3 \left(- \frac{243 x}{\left(- 9 x^{2} + 1\right)^{\frac{5}{2}}} + \frac{18}{x \left(- 9 x^{2} + 1\right)^{\frac{3}{2}}} - \frac{6}{x^{3} \sqrt{- 9 x^{2} + 1}} - \frac{2}{x^{4}} \operatorname{acos}{\left (3 x \right )}\right)$$