Answer
$magnitude$, $modulus$, $argument$
Work Step by Step
For $z=r(cos\theta+i\ cos\theta)$, we call $r$ the $magnitude$ or $modulus$, and call $\theta$ the $argument$ of $z$.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 8 - Polar Coordinates; Vectors - Section 8.3 The Complex Plane; De Moivre's Theorem - 8.3 Assess Your Understanding - Page 614: 6
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