Question

Solve for x:
3sinx^2=cosx^2

Answer 1

Divide both sides by cos^2 x to get
\[\LARGE 3 \tan^2x = 1\]
\[\LARGE \tan^2 x= \frac{1}{3} = > \tan x = \pm \frac{1}{3}\]
now you can solve for x

Answer 2

I hope you meant cos^2x and not cosx^2

Answer 3

yes that is what I meant.
\[3\sin ^{2}x=\cos ^{2}x\] \[0\le x <2\pi \]