Introduction to Imaginary Numbers

Introduction to Imaginary Numbers

Author: Kyle Webb

Learn about the number i and it's definition(s).  See how to find imaginary roots of negative numbers.

  • Imaginary Numbers introduction
  • Find imaginary roots of negative numbers.
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Introduction to i and Imaginary Numbers

Definitions of Imaginary Numbers

can be defined as:

i squared equals negative 1 or square root of negative 1 end root equals i

Rewriting Radicals using Complex Numbers

What's the point of Imaginary Numbers?

We use i for imaginary numbers. Although, "j" is also used as an imaginary number in this video.

OPTIONAL: Imaginary Roots of Negative Numbers