Algebra
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Boundless Algebra
Complex Numbers and Polar Coordinates
Complex Numbers
Algebra Textbooks Boundless Algebra Complex Numbers and Polar Coordinates Complex Numbers
Algebra Textbooks Boundless Algebra Complex Numbers and Polar Coordinates
Algebra Textbooks Boundless Algebra
Algebra Textbooks
Algebra
Concept Version 5
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Complex Conjugates

The length of a complex number

The length of a complex number

The length of the line segment from the origin to the point $a+bi$ is $\sqrt{a^2+b^2}$.  This comes from the Pythagorean Theorem. 

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    "440px-Complex_number_illustration.svg.png."
    https://en.wikipedia.org/wiki/Complex_number Wikipedia CC0 1.0 Universal.
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