limn(1/(1+n^2)+2/(2^2+n^2)+...+n/(n^2+n^2),n趋于无穷n(1/(1+n^2)+2/(2^2+n^2)+...+n/(n^2+n^2)在答案变形成n/n^2(1/((1/n)^2+1)+1/((2/n)^2+1)+...+1/((n/n)^2+1)我不太明白是怎么回事,

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 14:32:48
limn(1/(1+n^2)+2/(2^2+n^2)+...+n/(n^2+n^2),n趋于无穷n(1/(1+n^2)+2/(2^2+n^2)+...+n/(n^2+n^2)在答案变形成n/n^2(1/((1/n)^2+1)+1/((2/n)^2+1)+...+1/((n/n)^2+1)我不太明白是怎么回事,
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limn(1/(1+n^2)+2/(2^2+n^2)+...+n/(n^2+n^2),n趋于无穷n(1/(1+n^2)+2/(2^2+n^2)+...+n/(n^2+n^2)在答案变形成n/n^2(1/((1/n)^2+1)+1/((2/n)^2+1)+...+1/((n/n)^2+1)我不太明白是怎么回事,
limn(1/(1+n^2)+2/(2^2+n^2)+...+n/(n^2+n^2),n趋于无穷
n(1/(1+n^2)+2/(2^2+n^2)+...+n/(n^2+n^2)在答案变形成n/n^2(1/((1/n)^2+1)+1/((2/n)^2+1)+...+1/((n/n)^2+1)我不太明白是怎么回事,

limn(1/(1+n^2)+2/(2^2+n^2)+...+n/(n^2+n^2),n趋于无穷n(1/(1+n^2)+2/(2^2+n^2)+...+n/(n^2+n^2)在答案变形成n/n^2(1/((1/n)^2+1)+1/((2/n)^2+1)+...+1/((n/n)^2+1)我不太明白是怎么回事,
就是提出分母的n^2