Answer
$57.48877$ cm
Work Step by Step
$cos\theta=\frac{adj}{hyp}$
$cos(\frac{3\pi}{8})=\frac{22}{x }$
Need to solve for $x$.
$x=\frac{22}{cos(\frac{3\pi}{8})}$
Hence, $x= 57.48877$ cm
Calculus: Early Transcendentals 9th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1337613924
ISBN 13:
978-1-33761-392-7
APPENDIX D - Trigonometry - D Exercises - Page A 34: 38
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