What is a Complex Number? - Definition & Properties


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question 1 of 3

If z1 = -2 - 3i and z2 = 2 + 4i, what is z1 + z2?

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1. If z1 = 2 + 3i and z2 = 2 + 4i, what is z1 - z2?

2. If z1 = 4 - 3i and z2 = -3 + 4i, what is z1 x z2?

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About This Quiz & Worksheet

Inside this quiz and worksheet, you can find questions on complex numbers. You will be asked about differentiating between real and imaginary parts and solving some practice problems that use both.

Quiz & Worksheet Goals

You will see the topics listed below as part of the quiz questions:

  • The imaginary part of z
  • The real part of z
  • Using the properties

Skills Practiced

  • Problem solving - use what you know to solve practice problems involving complex numbers
  • Information recall - remember what you have learned about the imaginary part of z
  • Knowledge application - utilize your skills to answer questions about the real part of z

Additional Learning

To get more out of these numbers, visit the lesson titled What is a Complex Number? - Definition & Properties, where you can find the following extra topics:

  • The value of i
  • The distributive property
  • Adding and subtracting
  • Commutative property