. Let Z1 and Z2 be two roots of the equation 2 Z aZ b + += 0 , Z being complex. Further , assume that the origin, Z1 and Z2 form an equilateral triangle. Then

Let $Z_{1}$ and $Z_{2}$ be two roots of the equation $Z^{2}+a Z+b=0, Z$ being complex. Further, assume that the origin, $Z_{1}$ and $Z_{2}$ form an equilateral triangle. Then