Math Chapter Wise Complex Number, De Moivre's Theorem And Nth Root Of Unity English MCQ JDD-75-PGT TIER II-X-15 28.06.2015 Q.The modulus of (()))((()) 1 2i 2 i 3 4i + − − is equal– A5 B5 C1 D1/5 Show answer Correct answer: 1