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[Post New]2 Apr 2008 15:07:45 IST
    Subject: Re:Limits::easy one::::..........
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layman (148)

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Olaaa!! Perrrfect answer. 24  [38 rates]
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lim_{n\rightarrow \infty} \frac{1}{\sqrt{n}} \sum^{r=4n}_{r=1} \frac{1}{\sqrt{r}}

=lim_{n\rightarrow \infty} \frac{1}{n} \sum^{r=4n}_{r=1} \sqrt{\frac{n}{r}}

=\int_{0}^{4} \frac{1}{\sqrt{x}}\,dx

=4


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