|z|=2
sinf=-1/2
cosf=-sqrt(3)/2
z=2(-cos(П/6)-isin(-П/6))=-2(cos(П/6)-isin(П/6))
z=2*e^(-iП/6)
*-(8 5/16+5 29/32)=218
*-(8 10/32+5 29/32)=218
*-13 39/32=218
*-14 7/32=218
*=218+ 14 7/32
*=232 7/32