lim(n趋向于无穷)(k/n-1/n+1-1/n+2-‘‘‘‘-1/n+k)(其中K为与N无关的正整数)
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lim(n趋向于无穷)(k/n-1/n+1-1/n+2-‘‘‘‘-1/n+k)(其中K为与N无关的正整数)lim(n趋向于无穷)(k/n-1/n+1-1/n+2-‘‘‘‘-1/n+k)(其中K为与N无
lim(n趋向于无穷)(k/n-1/n+1-1/n+2-‘‘‘‘-1/n+k)(其中K为与N无关的正整数)
lim(n趋向于无穷)(k/n-1/n+1-1/n+2-‘‘‘‘-1/n+k)(其中K为与N无关的正整数)
lim(n趋向于无穷)(k/n-1/n+1-1/n+2-‘‘‘‘-1/n+k)(其中K为与N无关的正整数)
=lim(1/n-1/(n+1)+1/n-1/(n+2)+...+1/n-1/(n+k))
=lim(1/(n+1)+2/(n+2)+...+k/(n+k))/n
lim(1/(n+1)+2/(n+2)+...+k/(n+k))/n>=lim(1/(n+1)+1/(n+2)+...+1/(n+k))/n>=lim(1/(n+k)+1/(n+k)+...+1/(n+k))/n=lim k/(n(n+k))=0
lim(1/(n+1)+2/(n+2)+...+k/(n+k))/n
由夹逼准则得最后答案为0.
lim(n趋向于无穷)(k/n-1/n+1-1/n+2-‘‘‘‘-1/n+k)(其中K为与N无关的正整数)
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