Question

simplify

A) sin^2 theta
B) cos^2 theta
C) tan^ theta
D) 1

Answer 1

$\frac{1-cos^2(\theta)}{cos^2(\theta)}$

we can use trigonometric identity

1-cos^2x =sin^2x

$\frac{sin^2(\theta)}{cos^2(\theta)}$

now, we know that

tanx=sinx/cosx

$=tan^2(\theta)$.............Answer