3*sin(3*acos(x))
----------------
________
/ 2
\/ 1 - x
$$\frac{3 \sin{\left(3 \operatorname{acos}{\left(x \right)} \right)}}{\sqrt{1 - x^{2}}}$$
/3*cos(3*acos(x)) x*sin(3*acos(x))\
3*|---------------- + ----------------|
| 2 3/2 |
| -1 + x / 2\ |
\ \1 - x / /
$$3 \left(\frac{x \sin{\left(3 \operatorname{acos}{\left(x \right)} \right)}}{\left(1 - x^{2}\right)^{\frac{3}{2}}} + \frac{3 \cos{\left(3 \operatorname{acos}{\left(x \right)} \right)}}{x^{2} - 1}\right)$$
/ 2 \
| 8*sin(3*acos(x)) 9*x*cos(3*acos(x)) 3*x *sin(3*acos(x))|
3*|- ---------------- - ------------------ + -------------------|
| 3/2 2 5/2 |
| / 2\ / 2\ / 2\ |
\ \1 - x / \-1 + x / \1 - x / /
$$3 \cdot \left(\frac{3 x^{2} \sin{\left(3 \operatorname{acos}{\left(x \right)} \right)}}{\left(1 - x^{2}\right)^{\frac{5}{2}}} - \frac{9 x \cos{\left(3 \operatorname{acos}{\left(x \right)} \right)}}{\left(x^{2} - 1\right)^{2}} - \frac{8 \sin{\left(3 \operatorname{acos}{\left(x \right)} \right)}}{\left(1 - x^{2}\right)^{\frac{3}{2}}}\right)$$