Answer
The direction angle of the vector of the complex number
Work Step by Step
The argument of the complex number $\theta=\tan^{-1} (\frac{y}{x})$ is the angle between the vector of the complex number and the positive x-axis.
Trigonometry (11th Edition) Clone
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
978-0-13-421743-7
ISBN 13:
978-0-13421-743-7
Chapter 8 - Complex Numbers, Polar Equations, and Parametric Equations - Section 8.2 Trigonometric (Polar) Form of Complex Numbers - 8.2 Exercises - Page 370: 8
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