7 3
6 4 12*(x + 2) *acos (3*x)
7*(x + 2) *acos (3*x) - ----------------------
__________
/ 2
\/ 1 - 9*x
$$7 \left(x + 2\right)^{6} \operatorname{acos}^{4}{\left(3 x \right)} - \frac{12 \left(x + 2\right)^{7} \operatorname{acos}^{3}{\left(3 x \right)}}{\sqrt{1 - 9 x^{2}}}$$
5 2 / 2 2 / 1 x*acos(3*x) \ 28*(2 + x)*acos(3*x)\
6*(2 + x) *acos (3*x)*|7*acos (3*x) - 18*(2 + x) *|--------- + -------------| - --------------------|
| | 2 3/2| __________ |
| |-1 + 9*x / 2\ | / 2 |
\ \ \1 - 9*x / / \/ 1 - 9*x /
$$6 \left(x + 2\right)^{5} \left(- 18 \left(x + 2\right)^{2} \left(\frac{x \operatorname{acos}{\left(3 x \right)}}{\left(1 - 9 x^{2}\right)^{\frac{3}{2}}} + \frac{1}{9 x^{2} - 1}\right) + 7 \operatorname{acos}^{2}{\left(3 x \right)} - \frac{28 \left(x + 2\right) \operatorname{acos}{\left(3 x \right)}}{\sqrt{1 - 9 x^{2}}}\right) \operatorname{acos}^{2}{\left(3 x \right)}$$
/ / 2 2 2 \ 2 \
4 | 3 3 | 6 acos (3*x) 27*x*acos(3*x) 27*x *acos (3*x)| 2 / 1 x*acos(3*x) \ 252*acos (3*x)*(2 + x)|
6*(2 + x) *|35*acos (3*x) - 18*(2 + x) *|------------- + ------------- - -------------- + ----------------| - 378*(2 + x) *|--------- + -------------|*acos(3*x) - ----------------------|*acos(3*x)
| | 3/2 3/2 2 5/2 | | 2 3/2| __________ |
| |/ 2\ / 2\ / 2\ / 2\ | |-1 + 9*x / 2\ | / 2 |
\ \\1 - 9*x / \1 - 9*x / \-1 + 9*x / \1 - 9*x / / \ \1 - 9*x / / \/ 1 - 9*x /
$$6 \left(x + 2\right)^{4} \left(- 18 \left(x + 2\right)^{3} \left(\frac{27 x^{2} \operatorname{acos}^{2}{\left(3 x \right)}}{\left(1 - 9 x^{2}\right)^{\frac{5}{2}}} - \frac{27 x \operatorname{acos}{\left(3 x \right)}}{\left(9 x^{2} - 1\right)^{2}} + \frac{\operatorname{acos}^{2}{\left(3 x \right)}}{\left(1 - 9 x^{2}\right)^{\frac{3}{2}}} + \frac{6}{\left(1 - 9 x^{2}\right)^{\frac{3}{2}}}\right) - 378 \left(x + 2\right)^{2} \left(\frac{x \operatorname{acos}{\left(3 x \right)}}{\left(1 - 9 x^{2}\right)^{\frac{3}{2}}} + \frac{1}{9 x^{2} - 1}\right) \operatorname{acos}{\left(3 x \right)} + 35 \operatorname{acos}^{3}{\left(3 x \right)} - \frac{252 \left(x + 2\right) \operatorname{acos}^{2}{\left(3 x \right)}}{\sqrt{1 - 9 x^{2}}}\right) \operatorname{acos}{\left(3 x \right)}$$