Instructional Video

Complex Conjugates, Imaginary and Complex Numbers, Precalculus

Curated and Reviewed by Lesson Planet

Sal discusses the usefulness of the conjugate of the complex number in this video. First, he shows how to add a complex number and its conjugate graphically and algebraically. Then, he shows how to simplify a rational expression with complex numbers in the denominator.

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Classroom Considerations
  • This video is hosted on YouTube