Complex Numbers 5

Sick of ads?‚Äč Sign up for MathVids Premium
Taught by YourMathGal
  • Currently 4.0/5 Stars.
2435 views | 2 ratings
Part of video series
Meets NCTM Standards:
Lesson Description:

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

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

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.