Calculus (3rd Edition)

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

Chapter 2 - Limits - 2.2 Limits: A Numerical and Graphical Approach - Exercises - Page 54: 1

Answer

$$\lim_{x\to 1} f(x)= 1.5 $$

Work Step by Step

Given $$f(x)=\frac{x^{3}-1}{x^{2}-1} $$ \begin{array}{|c|c|c|c|} \hline x & f(x) & x & f(x) \\ \hline 1.002 & 1.5015005 & 0.998 & 1.498500501 \\ \hline 1.001 & 1.500750125 & 0.999 & 1.499250125 \\ \hline 1.0005 & 1.500375031 & 0.9995 & 1.499625031 \\ \hline 1.00001 & 1.5000075 & 0.99999 & 1.4999925 \\ \hline \end{array} Then from the table, we get: $$\lim_{x\to 1} f(x)= 1.5 $$
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