Question

Find the derivative r=(csctheta + cot theta) *-1?

Answer 1

`r'=csctheta[cottheta+csctheta]`

Explanation:

if you mean `r=(csctheta + cot theta) *-1`

`r'=-[(-csctheta*cottheta)+(-csc^2theta)]`

`r'=csctheta*cottheta+csc^2theta`

`r'=csctheta[cottheta+csctheta]`