# Chapter 2 - Limits - 2.3 Techniques for Computing Limits - 2.3 Exercises: 39

2

#### Work Step by Step

$\lim\limits_{x \to 1}$ $\frac{x^{2}-1}{x-1}$ = $\lim\limits_{x \to 1}$ $\frac{(x-1)(x+1)}{x-1}$ = $\lim\limits_{x \to 1}$ x+1 = 1+1 = 2

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