x
cot (2)*(pi*I + log(-cot(2)))
$$\left(\log{\left (- \cot{\left (2 \right )} \right )} + i \pi\right) \cot^{x}{\left (2 \right )}$$
2 x
(pi*I + log(-cot(2))) *cot (2)
$$\left(\log{\left (- \cot{\left (2 \right )} \right )} + i \pi\right)^{2} \cot^{x}{\left (2 \right )}$$
3 x
(pi*I + log(-cot(2))) *cot (2)
$$\left(\log{\left (- \cot{\left (2 \right )} \right )} + i \pi\right)^{3} \cot^{x}{\left (2 \right )}$$