Answer
Let $\theta $ be a non-acute angle in standard position that lies in a quadrant. Its reference angle is the positive acute angle formed by the terminal side of $\theta $ and the $x$ -axis.
Work Step by Step
Given above.
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 4 - Section 4.4 - Trigonometric Functions of Any Angle - Concept and Vocabulary Check - Page 575: 6
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