Question

cos(2x+pi/6)=1/2 СРОЧНО НУЖНО!!!

Answer 1

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