3
12*tan (x) 2 / 2 \
- ------------- + 4*tan (x)*\3 + 3*tan (x)/*acos(3*x)
__________
/ 2
\/ 1 - 9*x
$$4 \left(3 \tan^{2}{\left(x \right)} + 3\right) \tan^{2}{\left(x \right)} \operatorname{acos}{\left(3 x \right)} - \frac{12 \tan^{3}{\left(x \right)}}{\sqrt{1 - 9 x^{2}}}$$
/ 2 / 2 \ \
| 9*x*tan (x) 6*\1 + tan (x)/*tan(x) / 2 \ / 2 \ |
12*|- ------------- - ---------------------- + 2*\1 + tan (x)/*\1 + 2*tan (x)/*acos(3*x)|*tan(x)
| 3/2 __________ |
| / 2\ / 2 |
\ \1 - 9*x / \/ 1 - 9*x /
$$12 \left(- \frac{9 x \tan^{2}{\left(x \right)}}{\left(1 - 9 x^{2}\right)^{\frac{3}{2}}} + 2 \left(\tan^{2}{\left(x \right)} + 1\right) \left(2 \tan^{2}{\left(x \right)} + 1\right) \operatorname{acos}{\left(3 x \right)} - \frac{6 \left(\tan^{2}{\left(x \right)} + 1\right) \tan{\left(x \right)}}{\sqrt{1 - 9 x^{2}}}\right) \tan{\left(x \right)}$$
/ / 2 \ \
| 3 | 27*x | |
| 9*tan (x)*|-1 + ---------| |
| / 2 \ | 2| 2 / 2 \ / 2 \ / 2 \ |
| / 2 \ |/ 2 \ 4 2 / 2 \| \ -1 + 9*x / 81*x*tan (x)*\1 + tan (x)/ 18*\1 + tan (x)/*\1 + 2*tan (x)/*tan(x)|
12*|2*\1 + tan (x)/*\\1 + tan (x)/ + 2*tan (x) + 7*tan (x)*\1 + tan (x)//*acos(3*x) + -------------------------- - -------------------------- - ---------------------------------------|
| 3/2 3/2 __________ |
| / 2\ / 2\ / 2 |
\ \1 - 9*x / \1 - 9*x / \/ 1 - 9*x /
$$12 \left(- \frac{81 x \left(\tan^{2}{\left(x \right)} + 1\right) \tan^{2}{\left(x \right)}}{\left(1 - 9 x^{2}\right)^{\frac{3}{2}}} + 2 \left(\tan^{2}{\left(x \right)} + 1\right) \left(\left(\tan^{2}{\left(x \right)} + 1\right)^{2} + 7 \left(\tan^{2}{\left(x \right)} + 1\right) \tan^{2}{\left(x \right)} + 2 \tan^{4}{\left(x \right)}\right) \operatorname{acos}{\left(3 x \right)} - \frac{18 \left(\tan^{2}{\left(x \right)} + 1\right) \left(2 \tan^{2}{\left(x \right)} + 1\right) \tan{\left(x \right)}}{\sqrt{1 - 9 x^{2}}} + \frac{9 \left(\frac{27 x^{2}}{9 x^{2} - 1} - 1\right) \tan^{3}{\left(x \right)}}{\left(1 - 9 x^{2}\right)^{\frac{3}{2}}}\right)$$