Question

Please help solve this

Answer 1

sin^2(x)tan(x)=tan(x)-cos(x) sin(x)

Answer 2

Explanation:

because the two sides have been shown to be equivalent, the equation is an identity.

sin^2(x)tan(x)=tan(x)-cos(x)sin(x)

The multiple choice answers given are all the same exact answer, so I am confused by that.