Answer
16a. $\frac{1}{2}$
16b. $\frac{1}{2}$
Work Step by Step
16a. $cos \frac{\pi}{3}$ = $\frac{1}{2}$ (given by unit circle)
16b. $sin \frac{\pi}{6}$ = $\frac{1}{2}$ (given by unit circle)
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 5 - Review - Exercises - Page 463: 16
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