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Question 230006
JEE Mathematics · Easy

Complex Numbers: Multiplication MCQ

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MultiplicationEasyQuestion 230006

Question

(1 + i)² equals:
  1. A
    2i
    Correct
  2. B
    −2
  3. C
    2
  4. D
    −2i

Correct answer

2i

Explanation

(1+i)² = 1 + 2i + i² = 1 + 2i − 1 = 2i.

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