Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 6 - 6.1 - Angles and Their Measure - 6.1 Exercises - Page 431: 65


(a) $75°$ (b) $-420°$

Work Step by Step

(a) $\frac{5\pi}{12}=\frac{5\pi}{12}\frac{180°}{\pi}=\frac{900°}{12}=75°$ (b) $-\frac{7\pi}{3}=-\frac{7\pi}{3}\frac{180°}{\pi}=-\frac{1260°}{3}=-420°$
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