Answer
-$\frac{7\pi}{4}$
Work Step by Step
Angle in radian = angle in degrees $\times \pi/180$
$\frac{-315\pi}{180} = -\frac{7pi}{4}$
Trigonometry (11th Edition) Clone
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
978-0-13-421743-7
ISBN 13:
978-0-13421-743-7
Chapter 3 - Radian Measure and the Unit Circle - Section 3.1 Radian Measure - 3.1 Exercises - Page 104: 18
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