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)+
2022-06-06 07:19:06 34次 反馈错误 加入收藏 正确率 : 100%
题目内容:
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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