Answer
True
Work Step by Step
We know that sine is equal to opposite over hypotenuse. Since the hypotenuse for the unit circle is 1, it follows that $sin\theta =y$.
Functions Modeling Change: A Preparation for Calculus, 5th Edition
by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.
Published by
Wiley
ISBN 10:
1118583191
ISBN 13:
978-1-11858-319-7
Chapter 7 - Trigonometry and Periodic Functions - Strengthen Your Understanding - Page 319: 8
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