Question

cos^2x=(1/4) solve for x

Answer 1

Hints:
\( cos^2(x)=\frac{1}{4} \)
then
\( cos(x)=\pm \frac{1}{2} \)
So you should expect 4 zeroes between 0 and 2\(\pi\).

Answer 2

thank you!

Answer 3

You're welcome!