# Math Help - Trig Equations

1. ## Trig Equations

How would you solve cos^2(x) = 1/4

2. Originally Posted by CenturionMonkey
How would you solve cos^2(x) = 1/4
$\cos^2 x = \frac 14 \implies \cos x = \pm \frac 12$ now what values of x cause that to happen?

3. how would you go about solving

tan2(x) = 8cos^2(x) - cot(x), domain is 0 to 360