Question

verify the identity ?

Answer 1

Did you try rewriting it in terms of Cosine and Sine?

Answer 2

I didn't know if I could since it isn't just "sec x" and its "sec^2 x"

Answer 3

\(sec^2 x\) can rewritten as either \(\Large \frac{1}{cos^2 x}\) or \(\large 1+tan^2 x\).