已知lim[(an^2+5n-2)/(3n+1)-n]=b,求a,b的值
已知lim[(an^2+5n-2)/(3n+1)-n]=b,求a,b的值
已知:lim (n→∞) [(n^2+n)/(n+1)-an-b]=1 ,求a,b的值
已知lim((an2+5n-2)/(3n+1) -n)=b 求a b的值
已知lim n→无穷 (an^2+bn+5)/(3n-2)=2,求a,b的值
lim (n→∞) (n^2/(an+b)-n^3/(2n^2-1))=1/4 求a,b
lim[(n^2+1)/(n+1)-an-b]=o求a和b的值 lim[1/(a-1)^n]=0 求a的范围
已知lim[(3n^2+cn+1)/(an^2+bn)-4n]=5,求常数a、b、c的值
lim (n→∞) [(an^2+bn+c)/(2n+5)]=3,求a,b
已知lim(n的平方+1/n+1+an-b)=1,求a,b的值
lim(n2+2n+2)/(n+1)-an)=b,求a,b
若lim(2n+(an^2-2n+1)/(bn+2))=1 求a/b的值
a,b为常数.lim(n->无穷)an^2+bn+2/2n-1=3 求a,b