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: 12a



Work Step by Step

Step 1: $78^{\circ}21'=78\frac{21}{60}^{\circ}=78.35^{\circ}$ Step 2: $\sin78^{\circ}21'=\sin78.35^{\circ}\approx0.97939940$
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