Answer
$\frac{1}{2}$
Work Step by Step
As the intersection point is on the unit circle, by definition $sin\theta=y=\frac{1}{2}$
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 6 - Review - Exercises - Page 529: 46
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