Question

Verify trig the identity Verify the identity.

(1-sinx)/cosx=cosx/(1+sinx)

Answer 1

Heres what we start with:
\[\frac{ 1-\sin }{ \cos }=\frac{ \cos }{ 1+\sin }\]We could try cross multiplying which will give us the following:
\[\cos^2 = (1-\sin)(1+\sin)\]
\[\cos^2 = 1-\sin^2\]Do you see what we could do from here?

Answer 2

Yes thank you! I couldn't get the first step!

Answer 3

You're welcome, glad I could help.