What do you get if you take the square root of both sides?Can’t figure this equation out, can someone help?
Observe that you have a quadratic in \(\cos(4x)\)...can you proceed?Please help me solve this equation.
2cos^2 (4theta) +3cos(4theta) +1=0
I tried to parse your wording, above. (Your last post is not clear, regarding what you're working on now or what kind of help you need.)The [first] one is different[.] I figured the second one[.]