Question

Cos(2x+pi/6)=1/2 СРОЧНО НУЖНО!!!

Answer 1

$cos(2x+ \frac{\pi}{6} )= \frac{1}{2}$
$2x+ \frac{\pi}{6} =+/- \frac{\pi}{3} +2{\pi}k$
$x_{1} = \frac{\pi}{12} +{\pi}k$
$x_{2}=- \frac{\pi}{4} +{\pi}k$