Answer
Quadrant I and Quadrant IV
Work Step by Step
RECALL:
The cosine function is positive in Quadrant I and Quadrant IV.
Thus, if $\cos{\theta}=\frac{1}{2}$. then the angle $\theta$ terminates either in Quadrant I or Quadrant IV.
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapter 1 - Section 1.3 - Definition I: Trigonometric Functions - 1.3 Problem Set - Page 32: 44
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