Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 4 - Section 4.1 - Angles and Radian Measure - Exercise Set: 28

Answer

-720°

Work Step by Step

To convert radians to degrees, multiply radians by $\frac{180°}{\pi radians}.$ So -4$\pi$ = -4$\pi$ x $\frac{180°}{\pi radians}$ = -720°.
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