Math Chapter Wise Complex Number, De Moivre's Theorem And Nth Root Of Unity English MCQ PGT 2011 Q.If ω is an imaginary cube root of unity then (1–ω+ω2)6 +(1–ω2 +ω)6 = (1–ω+ω2)6 +(1–ω2 +ω)6 = A0 B6 C64 D128 Show answer Correct answer: 128