fun-lim

Question: $\underset{x\to a}{\mathop{\lim }}\,\frac{({{x}^{-1}}-{{a}^{-1}})}{x-a}=$



1) ${{x}_{n+1}}=\sqrt{2+{{x}_{n}}},\ n\ge 1,\ $
2) $\frac{-1}{a}$
3) $\frac{1}{{{a}^{2}}}$
4) $\frac{-1}{{{a}^{2}}}$
Solution: Explanation: No Explanation
Limits

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