The Complex World of Numbers
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Questions and Answers

Which symbol is used to represent a complex number?

  • r
  • n
  • c
  • i (correct)

    • Which equation defines the imaginary unit?

  • i^2 = 0
  • i = 1
  • i^2 = -1 (correct)
  • i = 0

    • What is the real part of a complex number a + bi?

  • a + bi
  • a (correct)
  • 0
  • b

    • What is the imaginary part of a complex number a + bi?

    <p>b</p> Signup and view all the answers

    Complex numbers allow solutions to which type of equations?

    <p>Polynomial equations</p> Signup and view all the answers

    Which equation correctly defines a complex number?

    <p>$a + bi$</p> Signup and view all the answers

    What is the imaginary unit denoted as?

    <p>$i$</p> Signup and view all the answers

    Who called the imaginary unit an imaginary number?

    <p>René Descartes</p> Signup and view all the answers

    What is the set of complex numbers denoted as?

    <p>$\mathbb{C}$</p> Signup and view all the answers

    Complex numbers allow solutions to which type of equations?

    <p>Polynomial equations</p> Signup and view all the answers

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