Answer
$ 2(cos150^\circ+i\ sin150^\circ)$
Work Step by Step
$-\sqrt 3+i=2(-\frac{\sqrt 3}{2}+\frac{1}{2}i)=2(cos150^\circ+i\ sin150^\circ)$
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 10 - Systems of Equations and Inequalities - Section 10.1 Systems of Linear Equations: Substitution and Elimination - 10.1 Assess Your Understanding - Page 737: 90
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