问题
填空题
若
|
答案
∵
(lim x→∞
-ax+b)=x2+3x+4 x+1 lim x→∞ (a-1)x2+(3-a-b)x+(4-b) x+1
又
(lim x→∞
-ax+b)=2x2+3x+4 x+1
∴a=1,b=0;
故答案为1;0.
若
|
∵
(lim x→∞
-ax+b)=x2+3x+4 x+1 lim x→∞ (a-1)x2+(3-a-b)x+(4-b) x+1
又
(lim x→∞
-ax+b)=2x2+3x+4 x+1
∴a=1,b=0;
故答案为1;0.