Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 8 - Section 8.1 - Complex Numbers - 8.1 Problem Set - Page 426: 41


$5\cos x-3i\sin y$

Work Step by Step

Step 1: $(3\cos x+4i\sin y)+(2\cos x-7i\sin y)$ Step 2: $(3\cos x+2\cos x)+(4i\sin y-7i\sin y)$ Step 3: $5\cos x-3i\sin y$
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