Question

Verify that the trigonometric function is an identity.

cos theta
---------- = cos theta
csc theta

I don't understand this stuff at all and can't verify it.

Answer 1

\[\frac{\cos(\theta)}{\csc(\theta)} = \cos(\theta)\] you know that csc(theta)= 1/sin(theta) yes?

Answer 2

So you want to evaluate one side of the equation to match the other side.

Answer 3

It is not an identity, how to verify??