2cos(x/2 +  пи/6)=√3 ....................................................................................

2cos(x/2+pi/6)=√3 cos(x/2+pi/6)=√3 /2 1)x/2+pi/6=pi/6+2pik . k=z x=4pik 2)x/2+pi/6=-pi/6+2pik x/2=-pi/3+2pik x=-2pi/3+4pik