Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 3 - Review Exercises - Page 135: 16

Answer

$-756^{\circ}$

Work Step by Step

In order to convert a radian measure to degrees, we must multiply the given radian measure by $\frac{180}{\pi}^{\circ}$ and simplify. Therefore, $-\frac{21\pi}{5}radians=-\frac{21\pi}{5}(\frac{180}{\pi}^{\circ})=-\frac{3780\pi}{5\pi}^{\circ}=-756^{\circ}$.
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