Answer
-0.4017 radians
Work Step by Step
We need to mutiply the angle in degrees by $\dfrac{\pi}{180}$ radians:
$-23.0143^{\circ}=-23.0143\dfrac{\pi}{180}\approx-0.4017$ radians
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 99: 56
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