Trigonometry (10th Edition)

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

Chapter 1 - Trigonometric Functions - Section 1.4 Using the Definitions of the Trigonometric Functions - 1.4 Exercises: 14

Answer

0.10199657

Work Step by Step

1.Reciprocal identity $\cos\theta=\frac{1}{\sec\theta}$ 2. Substitute the given value: $\cos\theta=\frac{1}{9.80425133}=0.10199657$
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