Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 2 - Test - Page 97: 15

Answer

$\approx 67.1^{o}\quad(67^{o}6^{\prime})$

Work Step by Step

Draw a sketch (see below) SOHCATOA: $\displaystyle \sin\theta=\frac{71.3}{77.4}$ $\displaystyle \theta=\sin^{-1}(\frac{71.3}{77.4})\approx 67.1004748523^{o}$ $\approx 67.1^{o}\approx 67^{o}6^{\prime}$ .
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