Trigonometry (10th Edition)

by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie

Published by Pearson

ISBN 10: 0321671775

ISBN 13: 978-0-32167-177-6

Chapter 3 - Radian Measure and the Unit Circle - Section 3.1 Radian Measure - 3.1 Exercises - Page 98: 14

Answer

-$\frac{7\pi}{4}$

Work Step by Step

Angle in radian = angle in degrees $\times \pi/180$ $\frac{-315\pi}{180} = -\frac{7pi}{4}$

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