Simplifying Imaginary Numbers

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Taught by mrbrianmclogan
  • Currently 4.0/5 Stars.
1053 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson, you will learn how to simplify imaginary numbers. The instructor explains that "i" represents the square root of negative one, and that when you square "i", it equals negative one. He also shows how to find the value of "i" when raised to higher exponents. By following the pattern, the instructor shows how to solve problems with imaginary numbers by multiplying numbers and then solving for "i". This lesson is a great introduction to understanding the basics of imaginary numbers.

Lesson Description:

How to simplify imaginary numbers

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Questions answered by this video:
  • If i is equal to the square root of -1, what do i to the power of 2, 3 and 4 equal?
  • How do I simplify an imaginary number containing exponents?
  • Given imaginary numbers, how can I multiply them, or take them to powers?
  • Staff Review

    • Currently 4.0/5 Stars.
    The instructor explains how to find the values of i to the 2nd, 3rd, and 4th powers. He then uses these answers to multiply imaginary numbers and simplify the results. He then gives another example of finding the value of i to a higher power.