Math- gr.12 Trig.
posted by May on .
Hi, could someone explain to me how to use a counterexample in trig to prove whether something is either an identity or equation?
For ex. how would you do that with this question?
sec^2x-tan^2x= cos x
posted by May on .
Hi, could someone explain to me how to use a counterexample in trig to prove whether something is either an identity or equation?
For ex. how would you do that with this question?
sec^2x-tan^2x= cos x