1 acos(3*x) x x
- - - --------- + ------------- + cot (2*E)*log(cot(2*E))
x 3 __________
/ 2
\/ 1 - 9*x
$$\frac{x}{\sqrt{1 - 9 x^{2}}} + \log{\left(\cot{\left(2 e \right)} \right)} \cot^{x}{\left(2 e \right)} - \frac{\operatorname{acos}{\left(3 x \right)}}{3} - \frac{1}{x}$$
2
1 2 x 2 9*x
-- + ------------- + cot (2*E)*log (cot(2*E)) + -------------
2 __________ 3/2
x / 2 / 2\
\/ 1 - 9*x \1 - 9*x /
$$\frac{9 x^{2}}{\left(1 - 9 x^{2}\right)^{\frac{3}{2}}} + \log{\left(\cot{\left(2 e \right)} \right)}^{2} \cot^{x}{\left(2 e \right)} + \frac{2}{\sqrt{1 - 9 x^{2}}} + \frac{1}{x^{2}}$$
3
2 x 3 36*x 243*x
- -- + cot (2*E)*log (cot(2*E)) + ------------- + -------------
3 3/2 5/2
x / 2\ / 2\
\1 - 9*x / \1 - 9*x /
$$\frac{243 x^{3}}{\left(1 - 9 x^{2}\right)^{\frac{5}{2}}} + \frac{36 x}{\left(1 - 9 x^{2}\right)^{\frac{3}{2}}} + \log{\left(\cot{\left(2 e \right)} \right)}^{3} \cot^{x}{\left(2 e \right)} - \frac{2}{x^{3}}$$