Question

What is `5costheta-csctheta` in terms of `sintheta`?

Answer 1

`(5/2sin2theta-1)/sintheta`

Explanation:

`5costheta-cosectheta=5costheta-1/sintheta`

`=(5costhetasintheta-1)/sintheta`

`=(5/2sin2theta-1)/sintheta`