If -1 + -3 = re^ i , then the value of is

MHT CET 2026 Mathematics question

If , then the value of is

(A)
(B)
(C)
(D)Correct

Answer: (D)

Solution

. Modulus . The number lies in the second quadrant (real part negative, imaginary part positive). Reference angle , so the principal argument is \dfrac{π}{3}$ =

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Question ID VK-096259