Complex Numbers Operations
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Questions and Answers

What is the square of the imaginary unit $i$?

  • $-1$ (correct)
  • $-i$
  • $i$
  • $1$
  • Which of the following represents the complex conjugate of the complex number $3 + 4i$?

  • $3 + 4i$
  • $-3 + 4i$
  • $3 - 4i$ (correct)
  • $-3 - 4i$
  • What is the product of the complex numbers $(1 + i)$ and $(2 - i)$?

  • $3 + 3i$
  • $3 - i$
  • $3 - 3i$ (correct)
  • $3 + i$
  • What is the absolute value of the complex number $2 - 2i$?

    <p>$2 oot{2} ight)$</p> Signup and view all the answers

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