Question

How do you simplify `((sin^4(x)-sin^2(x)))/secx`?

Answer 1

Simplify f(x)

Explanation:

`f(x) = (sin^2 x)(sin^2 x - 1) cos x = (sin^2 x) (- cos^2 x).cos x` =

`= - 1/4 cos x.sin^2 2x`