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Mathematics 10 Online
OpenStudy (dls):

Limits

OpenStudy (dls):

\[\Huge \lim_{n \rightarrow \infty} \left\{ \frac{n!}{(kn)^n} \right\}^\frac{1}{n}\]

OpenStudy (dls):

Can someone get this in the form of \(\Huge \sum_{r=1}^{n} \frac{r}{n}\) form? I can do the rest.

OpenStudy (anonymous):

Let the limit \(=L\), then take the \(\ln\) of both sides.

OpenStudy (dls):

dont think that would work?

OpenStudy (dls):

hmmm..ookay proceed though

OpenStudy (anonymous):

So just focusing on the inside part: \[ \ln\left[\left(\frac{n!}{(kn)^n}\right)^{1/n}\right] \]

OpenStudy (anonymous):

\[ \frac 1n\ln(n!) - \frac 1n\ln((kn)^n) \]

OpenStudy (dls):

okay

OpenStudy (anonymous):

\[ \frac 1n\ln(n!)-(\ln(k)+\ln(n)) \]

OpenStudy (anonymous):

\[ \ln(n!)=\sum_{k=1}^n\ln(k) \]

OpenStudy (anonymous):

There is the summation you're looking for.

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