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Question Number 120071 by SOMEDAVONG last updated on 29/Oct/20

Answered by bramlexs22 last updated on 29/Oct/20

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

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