Hi again, guys. Tomorrow I will be getting some tutoring help with Integrals so I'm hoping you guys help me out with 2 integral questions. Please and thank you! <3

Here are the problems:

$\displaystyle \int 8csc(8x-9)dx$

and

$\displaystyle \int^{\frac{2\pi}{3}}_0 tan(\frac{x}{2})dx$

Help me, please.