Answer
0
Work Step by Step
The original limit is of an indeterminate form $\frac{0}{0}$. Hence, we use L'Hopital's:
$\displaystyle\lim_{x\to1}\frac{(\ln x)^2}{x-1}=\lim_{x\to1}\frac{2\ln x}{1}=\lim_{x\to1}2\ln x=\fbox{$0$}$
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