Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 6 - Trigonometric Functions - Chapter Review - Chapter Test - Page 436: 5



Work Step by Step

To convert from radians to degrees, the answer in degrees must be multiplied by $\frac{180^\circ}{\pi}$. Therefore: $\frac{9\pi}{2}\text{radians}=\frac{9\pi}{2}\cdot\frac{180^\circ}{\pi}=810^\circ.$
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