Answer
(a)
$480°$
$-240°$
(b)
$150°$
$-570°$
Work Step by Step
(a)
$120°+360°=480°$
$120°-360°=-240°$
(b)
$-210°+360°=150°$
$-210°-360°=-570°$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 6 - 6.1 - Angles and Their Measure - 6.1 Exercises - Page 430: 23
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