2 8
-7 - 7*cot (a) + 7*cos(a) + -----------
________
/ 2
\/ 1 - a
$$7 \cos{\left(a \right)} - 7 \cot^{2}{\left(a \right)} - 7 + \frac{8}{\sqrt{1 - a^{2}}}$$
8*a / 2 \
-7*sin(a) + ----------- + 14*\1 + cot (a)/*cot(a)
3/2
/ 2\
\1 - a /
$$\frac{8 a}{\left(1 - a^{2}\right)^{\frac{3}{2}}} + 14 \left(\cot^{2}{\left(a \right)} + 1\right) \cot{\left(a \right)} - 7 \sin{\left(a \right)}$$
2 2
/ 2 \ 8 2 / 2 \ 24*a
- 14*\1 + cot (a)/ - 7*cos(a) + ----------- - 28*cot (a)*\1 + cot (a)/ + -----------
3/2 5/2
/ 2\ / 2\
\1 - a / \1 - a /
$$\frac{24 a^{2}}{\left(1 - a^{2}\right)^{\frac{5}{2}}} - 14 \left(\cot^{2}{\left(a \right)} + 1\right)^{2} - 28 \left(\cot^{2}{\left(a \right)} + 1\right) \cot^{2}{\left(a \right)} - 7 \cos{\left(a \right)} + \frac{8}{\left(1 - a^{2}\right)^{\frac{3}{2}}}$$