Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 8 - Complex Numbers, Polar Equations, and Parametric Equations - Section 8.1 Complex Numbers - 8.1 Exercises - Page 357: 57

Answer

$2+0i$

Work Step by Step

$(-2 + 4i)-(-4+4i)=-2 + 4i+4-4i=(-2+4)+(4-4)i=2+(0)i=2+0i$
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