Trigonometry (11th Edition) Clone

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

Chapter 2 - Review Exercises - Page 94: 26



Work Step by Step

Step 1: First, we convert the angle into decimal degrees: $72^{\circ}30'=72\frac{30}{60}^{\circ}=72.5^{\circ}$ Therefore, $\sin 72^{\circ}30'=\sin 72.5^{\circ}$ Step 2: Then, we make sure that the calculator is in degree mode. Step 3: We then type $\sin 72.5^{\circ}$ into the calculator. Step 4: Solving, $\sin 72.5^{\circ}\approx0.95371695$.
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