Answer
a) $\frac{\pi}{6}$
b) $\pi$
Work Step by Step
a) Let $\sin^{-1}(0.5)=y$.
Then, $\sin y= 0.5= \sin \frac{\pi}{6}$.
$⇒y= \frac{\pi}{6}$.
b) Let $\cos^{-1}(-1)=y$.
Then, $\cos y= -1= \cos \pi$.
$⇒ y= \pi$
Calculus 8th Edition
by Stewart, James
Published by
Cengage
ISBN 10:
1285740629
ISBN 13:
978-1-28574-062-1
Chapter 6 - Inverse Functions - 6.6 Inverse Trigonometric Functions - 6.6 Exercises - Page 481: 1
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