Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 5 - Section 5.3 - Double-Angle Formulas - 5.3 Problem Set - Page 296: 1

Answer

$sin$ $2x$ $=$ $2$ $sin$ $x$ $cos$ $ x$

Work Step by Step

Using the double angle formula of sine we have: $sin$ $ 2$ $ A$ $=$ $2$ $sin$ $A$ $cos$ $A$ Next we change the $A$ to $x$, and we get: $sin$ $ 2$ $ x$ $=$ $2$ $sin$ $x$ $cos$ $x$
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