Answer
$0$
Work Step by Step
$\lim _{r\rightarrow 9}\dfrac {\sqrt {r}}{\left( r-9\right) ^{4}}=\dfrac {\sqrt {9}}{\left( 9-9\right) ^{4}}=\dfrac {3}{0}=\infty $
Calculus 8th Edition
by Stewart, James
Published by
Cengage
ISBN 10:
1285740629
ISBN 13:
978-1-28574-062-1
Chapter 1 - Functions and Limits - Review - Exercises - Page 97: 31
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