proving trig functions

Question

how do I prove sex/tanx=sinx/1-cosx

Answer 1

Agree. This can be proven if the right side of the equation is sin/(1-cos^2x)

Answer 2

They are not the same!

For x = pi,

sine is 0

cosine is -1

secant is -1

tangent is 0

The left side, secant / tangent is undefined while the right side is zero.

Their graphs are quite different.

REPOST

Answer 3

I don't think question is correct. Please revise and post again!