Trigonometry 7th Edition

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

Chapter 7 - Section 7.1 - The Law of Sines - 7.1 Problem Set - Page 371: 49



Work Step by Step

$\sin\theta=0.7380$ We know that, $0\leq\,\theta\lt360^{\circ}$ sin function is positive in Quadrants 1 and 2. So, $\theta=\sin^{-1}(0.7380)=47.6^{\circ}\,or\,180^{\circ}-47.6^{\circ}=132.4^{\circ}$ So, $\theta=47.6^{\circ}\,or\,132.4^{\circ}$
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