Trigonometry (10th Edition)

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

Chapter 1 - Trigonometric Functions - Section 1.3 Trigonometric Functions - 1.3 Exercises: 107

Answer

$20^{\circ}$

Work Step by Step

1. Arc sine $\sin^{-1} x (0.342)=19.9484$ 2. Arc cosine $\sin^{-1} x (0.94)=19.9484$
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