用ε-N定义证明lim(n→∞)bn=b则lim(n→∞)bn^2=b^2
lim (n→∞) [(an^2+bn+c)/(2n+5)]=3,求a,b
已知lim|b(n+1)/bn|=r 证明:lim n次方根|bn|=r
等差数列{an},{bn}的前n项和分别为An,Bn,切An/Bn=2n/3n+1,求lim(n→∞)an/bn
若lim[2n+(an^2+2n+1)/(bn+1)=1,则a+b
已知lim n→无穷 (an^2+bn+5)/(3n-2)=2,求a,b的值
若lim[(an^2+bn+c)/(2n-3)]=-2,则a+b=
已知a b 是常数 lim(a根号(2n^2+n+1) -bn))=1 则a+b=
极限证明题,设lim an=a(n趋于正无穷),lim bn=b(n趋于正无穷).用E-N法证明:lim(a0*bn+a
用数列极限的定义证明lim n→∞ n!/n^n=0
lim[2n+(an^2-2n+1)/(bn+2)]=1,则点(a,b)坐标为
lim(5n-根号(an^2+bn+c))=2,求实数a,b,c
lim[{根号(n^2+an)}-(bn+1)]=b,求a