fun-lim

Question: The value of $\underset{x\to 0}{\mathop{\lim }}\,\,\left[ \frac{\sqrt{a+x}-\sqrt{a-x}}{x} \right]$ is



1) 1
2) 0
3) $\sqrt{a}$
4) $1/\sqrt{a}$
Solution: Explanation: No Explanation
Limits

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