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Introduction to Imaginary Numbers - Problem 3

Teacher/Instructor Alissa Fong
Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

The absolute value of a complex number is the distance from the point to the origin when the number is graphed in the complex plane. Using the distance formula or the Pythagorean Theorem, we have the formula |a + bi| = root (a squared plus b squared) . Use just the coefficients as "a" and "b"- don't include the "i". Your result should be real - not imaginary.

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