Question

(sinx^2 cosx^2) - cosx^2​

Answer 1

- cos ^4 (x)

Explanation:

(sinx^2 cosx^2) - cosx^2​

Factor out cos ^2 x

cos^2 x(sin^2 x -1)

Factor out -1

-cos ^2 x (1 - sin ^2 x)

We know that 1 - sin^2 x = cos^2 x

- cos ^2 (x) * cos ^2 (x)

- cos ^4 (x)