Question

Simplify

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

Answer 1

`(1-cos^2(\theta))/(cos^2(\theta))`

we can use trigonometric identity

1-cos^2x =sin^2x

`(sin^2(\theta))/(cos^2(\theta))`

now, we know that

tanx=sinx/cosx

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