n^2/3^n当n趋向于无穷时求极限

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n^2/3^n当n趋向于无穷时求极限n^2/3^n当n趋向于无穷时求极限n^2/3^n当n趋向于无穷时求极限lim(n^2)/(3^n)=lim(2n)/(3^n*ln3)=lim(2)/(3^n*(

n^2/3^n当n趋向于无穷时求极限
n^2/3^n当n趋向于无穷时求极限

n^2/3^n当n趋向于无穷时求极限
lim(n^2)/(3^n)=lim(2n)/(3^n*ln3)=lim(2)/(3^n*(ln3)^2)=0