Cos(3p/2)=0
cos(5p/3)=1/2
cos(11p/6)=sqrt3/2
sin(3p/2)=-1
cos(2p/3)=-1/2
sin(3p/3)=0
sin(11p/6)=-1/2
sin(2p/3)=sqrt3/2
sqrt-квадратный корень
Cos(3p/2)=0
cos(5p/3)=1/2
cos(11p/6)=sqrt3/2
sin(3p/2)=-1
cos(2p/3)=-1/2
sin(3p/3)=0
sin(11p/6)=-1/2
sin(2p/3)=sqrt3/2
sqrt-квадратный корень