Question

Verify the expression from the right side.
(sinx/1-cosx) +(sinx/1+cosx) = 2 csc x

I never know how to start these and which functions to use. I tried this:
2 ccs x
=2/sin x
=2/(1/cscx)

Answer 1

csc***

Answer 2

Why don't you simplify LHS and try to convert that into RHS ?

Answer 3

okay I'll try