Answer
$\sin\theta=\sin (180^\circ-\theta)$
Work Step by Step
Since $\sin \theta$ has the same values with $\sin (180^\circ-\theta)$, they are equivalent.
$\sin\theta=\sin (180^\circ-\theta)$
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 Function of Any Angle - 6.3 Exercises - Page 456: 115b
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