n趋于无穷,n^2 / (e^根号n)的极限怎么算 - 知识问答

n趋于无穷,n^2 / (e^根号n)的极限怎么算?帮帮小妹哦?

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n趋于无穷,n^2 / (e^根号n)的极限怎么算?帮帮小妹哦?
Limit[n^2/e^Sqrt[n],n→+∞]
=Limit[m^4/e^m,m→+∞]
=Limit[4m^3/e^m,m→+∞]
=Limit[12m^2/e^m,m→+∞]
=Limit[24m/e^m,m→+∞]
=Limit[24/e^m,m→+∞]
=0.
Limit[m^a/e^m,m→+∞]
=0

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