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lim(n->oo)(1/(n^2+1)+2/(n^2+2)+3/(n^2+3)...

`lim_(n->oo)(1/(n^2+1)+2/(n^2+2)+3/(n^2+3)+....n/(n^2+n))`

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The correct Answer is:
Hence using Sandwich theorem `lim_(ntooo)f(n)=1`.
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