Answer
Part A:
$\frac{\pi}{4}$,$\frac{7\pi}{4}$
Part B:
$\frac{3\pi}{4}$,$\frac{5\pi}{4}$
Work Step by Step
Using the unit circle, two angles that work are:
Part A:
$\frac{\pi}{4}$,$\frac{7\pi}{4}$
Part B:
$\frac{3\pi}{4}$,$\frac{5\pi}{4}$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 6 - 6.3 - Trigonometric Functions of Any Angle - 6.3 Exercises - Page 454: 88
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