$$\left(- \cot^{2}{\left(x \right)} - 1\right) e^{3}$$
/ 2 \ 3
2*\1 + cot (x)/*cot(x)*e
$$2 \left(\cot^{2}{\left(x \right)} + 1\right) e^{3} \cot{\left(x \right)}$$
/ 2 \ / 2 \ 3
-2*\1 + cot (x)/*\1 + 3*cot (x)/*e
$$- 2 \left(\cot^{2}{\left(x \right)} + 1\right) \left(3 \cot^{2}{\left(x \right)} + 1\right) e^{3}$$