Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 7 - Review Exercises - Page 552: 51



Work Step by Step

$sin(u-v)=sin~u~cos~v-cos~u~sin~v$ $sin~60°~cos~45°-cos~60°~sin~45°=sin(60°-45°)=sin~15°$
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