Question
$\lim _{x \rightarrow 1} \frac{x^{2}-1}{|x-1|}$ is(a) 1(b) 2(c) $-2$(d) Does not exist
Step 1
This function can be rewritten as: \[|x-1| = \begin{cases} x-1 & \text{for } x \geq 1 \\ -(x-1) & \text{for } x < 1 \end{cases}\] Show more…
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