Trigonometry 7th Edition

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

Chapter 3 - Section 3.2 - Radians and Degrees - 3.2 Problem Set - Page 133: 79



Work Step by Step

$4-\frac{2}{3}\sin (3\times\frac{\pi}{6}-\pi)=4-\frac{2}{3}\sin (-\frac{\pi}{2})$ $=4-(\frac{2}{3}\times-\sin \frac{\pi}{2})=4-(\frac{2}{3}\times-1)=4+\frac{2}{3}=\frac{14}{3}$
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