Math Chapter Wise Complex Number, De Moivre's Theorem And Nth Root Of Unity English MCQ KVS PGT 23-12-2018 Q.If 3 5i x 2 + =, then the value of 3 2 2x 6x 17x 12 − + + − + + − + + − + + is: A4 B8 C12 D0 Show answer Correct answer: 12