Question

sin^2x = 3cos^2x

Answer 1

"Solve the equation"

Answer 2

I'd do this, first: \(\sin^{2}(x) = 1 - \cos^{2}(x)\)

Answer 3

Alright, I got to cosx=1/2, can you help me with the next step please?

Answer 4

That can't be right. \(1 - \cos^{2}(x) = 3\cos^{2}(x)\).

This leads to \(4\cos^{2}(x) - 1 = 0\)

FACTOR! \((2\cos(x) - 1)(2\cos(x) + 1) = 0\)

Looks like more solutions than you found.