Calculus (3rd Edition)

Published by W. H. Freeman
ISBN 10: 1464125260
ISBN 13: 978-1-46412-526-3

Chapter 2 - Limits - 2.3 Basic Limit Laws - Exercises - Page 59: 21


$=\dfrac {2}{5}=0.4$

Work Step by Step

$\lim _{t\rightarrow 25}\dfrac {3\sqrt {t}-\dfrac {1}{5}t}{\left( t-20\right) ^{2}}=\dfrac {3\times \sqrt {25}-\dfrac {25}{5}}{\left( 25-20\right) ^{2}}=\dfrac {15-5}{52}=\dfrac {10}{25}=\dfrac {2}{5}=0.4$
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