JEE Main Mathematics question

Mathematics Complex Numbers JEE Main

If (a_1+ib_1)(a_2+ib_2)\cdots(a_n+ib_n)=A+iB, then is equal to

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

Answer: (B)

Solution

Taking moduli of both sides, . Sq

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Question ID VK-013978