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: 55

Answer

$12-i$

Work Step by Step

$(3+2i)+(9-3i)=3+9+(2-3)i=12+(-1)i=12-i$
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