Math Chapter Wise Complex Number, De Moivre's Theorem And Nth Root Of Unity English MCQ UP TGT-2016 (08-03-2019) Q.If sin2 (x + iy) = A + iB, then value of A is A() 1 1 cos2xcosh2y 2 + B() 1 1 cos2xcosh2y 2 − C() 1 sin 2xsinh 2y 2 D() 1 sin2xsinh2y 2 − Show answer Correct answer: () 1 1 cos2xcosh2y 2 −