Answer
$L=\infty$
Work Step by Step
$\frac{dy}{dx}=\frac{1}{\tan(x)}$
$L=\int_\frac{\pi}{2}^\pi\sqrt{1+\Big(\frac{1}{\tan(x)}\Big)^2}dx=\infty$
Calculus: Early Transcendentals 8th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1285741552
ISBN 13:
978-1-28574-155-0
Chapter 8 - Section 8.1 - Arc Length - 8.1 Exercises - Page 549: 36
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