Question

Resolva a equação 2 cosx- raiz 3 = 0

Answer 1

$2.cos(x)- \sqrt{3}=0\\ 2.cos(x)= \sqrt{3}\\ cos(x)=\frac{\sqrt3}{2}\\ \\ S=\{x \in R/x=\frac{\pi}{3}+2k\pi \ ou \ x=\frac{2\pi}{3}+2k\pi\}$