1×sinx^2-cos^2x

Answer 1

= sinx^2 - cos^2x

This expression cannot be further simplified as it is already in its simplest form.

Answer 2

well, sinx^2 - cos^2x = -cos(2x)

Answer 3

Yes, that's correct.

sinx^2 - cos^2x can be rewritten as -cos(2x) using the double angle identity for cosine.

So, 1×sinx^2-cos^2x = -cos(2x).