Algebra and Trigonometry 10th Edition

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

Chapter 7 - 7.4 - Sum and Difference Formulas - 7.4 Exercises - Page 538: 27



Work Step by Step

$sin(u-v)=sin~u~cos~v-cos~u~sin~v$ $sin~3~cos~1.2-cos~3~sin~1.2=sin(3-1.2)=sin~1.8$
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