若limx→3(x^2+ax+b)/(x-3)=1,求a,b的值

若limx→3(x^2+ax+b)/(x-3)=1,求a,b的值 若limx→∞[(2x^2+3)/(x+1)-ax+b]=0,求a,b的值 若极限limx→∞【4x^2+3/x-1+ax+b】=0.求常数a b.求极限limx→∞(√若极限limx→∞【4x^2+3/x-1+ax+b】=0.求常数a b.求极限limx→∞(√n^2+n)-n 已知limx→3 (x^2-ax+b)/x-3=2,则a= ,b= . 已知limx→2（ x^2+ax+b）/（2-x）=3,求a,b的值 若limx~∞[ax^3+(b-1)x^2+2/x^2+1]=1,求a,b的值 1、求limx→0[(tanx-x)]/x^2*tanx2、求limx→+∞（x^2*lnx）/（x+e^x）3、若limx→0（e^x-ax^2-bx-c）/x^2=0,求a,b,c的值 limx->2[x^3+ax+b/x-2]=8求ab值 已知limx^2+ax+b/x-1=3(x趋向于1),求a, 设limx→-1 (x^3+ax^2-x+4)/x+1=b(b为非零常数),求a,b limx->1 (x^3+ax^2+x+b)/(x^2-1)=3求a b的值. 1.设f(x)是三次函数,且limx→-1 f(x)/(x+1)=6,limx→-2 f(x)/(x-2)= -3/2,求limx→3 f(x)/(x-3)的值.2.已知limx→1 (ax^2+bx+1)/(x-1)=3,求limx→∞ ( b^n+a^(n-1) )/( a^n+b^(n-1) )需要全过程, limx→+∞[3x-根号下（ax^2-x+1]=2,求a 若limx→∞[（x²+1）/(x+1)-ax-b]=0,求a、b 确定常数a,b,使limx→1(x²+ax+b)/sin(x²-1)=3 已知limx→∞[(x^2+1)/(x+1)-(ax+b)]=0,求常数a,b的值 limx趋向无穷[(x^2+1)/(x+1)]-(ax+b)=1 求a,b 若limx→2 f(x)-5/x-2=3,求limx→2 f(x)极限值