Lim bn( n趋向无穷大) [( 1/ n2+1) + (2/ n2+1) +( 3/ n2+1) +.(2n/ n
Lim bn( n趋向无穷大) [( 1/ n2+1) + (2/ n2+1) +( 3/ n2+1) +.(2n/ n
求 证Lim ( n/ n2+1) + (n/ n2+2) +( n/ n2+3).+(n/n2+n)当n趋向无穷时的极
大一求极限lim(n/(n2+1)+n/(n2+2^2)+……+n/(n2+n2))
计算lim(1/n2+1+2/n2+1+3/n2+1+...+n/n2+1)
求lim【1/(n2+π)+1/(n2+2π)+...+1/(n2+nπ)】(n趋向于正无穷)
求极限lim((n+1)/(n2+1)+(n+2)/(n2+2)+...+(n+n)/(n2+n)),n趋近无穷
请问如何证明lim(n→∞)[n/(n2+n)+n/(n2+2n)+…+n/(n2+nn)]=1,
lim[n/(n^2+1^2)+n/(n2+2^2)+···n/(n^2+n^2)] n->无穷大
1.求lim[1/(n2+n+1)+2/(n2+n+2)+.+n/(n2+n+n)][n趋于无穷][n2为n的平方]
令bn=1/(n2+2n) Tn=b1+b2+b3+……+bn
lim(n2+2n+2)/(n+1)-an)=b,求a,b
求证lim(1+1/n+1/n2)n =e ( n→∞)