Answer
Double-Angle, $2\sin x\cos x$
Work Step by Step
If we know the values of $\sin x$ and $\cos x$, we can find the value of $\sin 2x$ by using the Double-Angle Formula for Sine. State the formula: $\sin 2x=2\sin x\cos x$.
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 7 - Section 7.3 - Double-Angle, Half-Angle, and Product-Sum Formulas - 7.3 Exercises - Page 560: 1
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