Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 8 - Application of Trigonometry - 8.5 Trigonometric (Polar) Form of Complex Numbers: Products and Quotients - 8.5 Exercises - Page 801: 60

Answer

$$0.82 + 0.57i$$

Work Step by Step

$$\eqalign{ & {\text{Trigonometric form }}\cos {35^ \circ } + i\sin {35^ \circ } \cr & {\text{Calculate }}\cos {35^ \circ }{\text{ and }}\sin {35^ \circ } \cr & \cos {35^ \circ } \approx 0.82 \cr & \sin {35^ \circ } \approx 0.57 \cr & {\text{,then}} \cr & \cos {35^ \circ } + i\sin {35^ \circ } \approx 0.82 + 0.57i \cr} $$
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