Trigonometry (10th Edition)

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

Chapter 8 - Review Exercises - Page 405: 50

Answer

$(5, 315^\circ)$ = $3.536 - 3.536i$

Work Step by Step

$(5, 315^\circ)$ is equivalent to $5cis315^\circ$ $5cis315^\circ$ = $5(cos315^\circ + isin315^\circ)$ = $5(\frac{\sqrt{2}}{2} - \frac{\sqrt{2}}{2}i)$ = $3.536 - 3.536i$
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