Answer
$\frac{\sqrt {3}}{2}$
Work Step by Step
As $\sin(\pi-x)=\sin x$, we have
$\sin \frac{2\pi}{3}=\sin(\pi-\frac{\pi}{3})=\sin\frac{\pi}{3}=\frac{\sqrt 3}{2}$
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapters 1-3 - Cumulative Test - Page 177: 24
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