Answer
$4((\sin(5x)+\sin(x))$
Work Step by Step
We know that $2\sin A\cos B=((\sin(A+B)+\sin(A-B))$, hence $8\sin 3x\cos 2x=4((\sin(5x)+\sin(x))$
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapter 6 - Section 6.4 - Parametric Equations and Further Graphing - 6.4 Problem Set - Page 353: 51
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