Complex Numbers 5

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
2492 views | 2 ratings
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this Complex Numbers 5 lesson, the instructor shows how to divide pure complex numbers by multiplying the numerator and denominator by i. He provides several examples to simplify division problems and emphasizes the importance of putting complex numbers in the form a + bi. The lesson concludes with a preview of the next video, which will cover dividing complex numbers in the form a + bi.

Lesson Description:

Several examples are provided, showing how to divide by pure complex numbers by multiplying numerator and denominator by i.

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Questions answered by this video:
  • How do you divide complex numbers?
  • How do you get rid of imaginary numbers from the denominators of fractions?
  • How do you divide 3/i?
  • How do you divide -5/2i?
  • How do you divide (9 - 6i)/3?
  • How do you divide (9 - 6i)/3i?
  • How do you divide 3/4i?
  • How do you divide (-8 + 12i)/6i?
  • How do you simplify b/ai?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson shows how to divide complex numbers and remove the imaginary parts from the denominator. The steps for simplifying these fractions are shown and explained. This is a great complex number tutorial to learn the basics of removing imaginary numbers from the denominator if the denominator is just a single term. More complicated examples follow in the next lessons.