求极限lim(n→∞)1/(n²+n+1)+2/(n²+n+2)+...+n/(n²+n+n)lim(n→∞)1/(n²+n+1)+2/(n²+n+2)+...+n/(n²+n+n)

问题描述:

求极限lim(n→∞)1/(n²+n+1)+2/(n²+n+2)+...+n/(n²+n+n)

lim(n→∞)1/(n²+n+1)+2/(n²+n+2)+...+n/(n²+n+n)