(1)已知a,b为常数,lim(x-无穷)ax^2+bx+5/3x+2=5,求a,b的值.(2)已知a,b为常数,lim(x-2,ax+b/x-2=2,求a...(1)已知a,b为常数,lim(x-无穷)ax^2+bx+5/3x+2=5,求a,b的值.(2)已知a,b为常数,lim(x-2,ax+b/x-2=2,求a,b的值.

问题描述:

(1)已知a,b为常数,lim(x-无穷)ax^2+bx+5/3x+2=5,求a,b的值.(2)已知a,b为常数,lim(x-2,ax+b/x-2=2,求a...
(1)已知a,b为常数,lim(x-无穷)ax^2+bx+5/3x+2=5,求a,b的值.(2)已知a,b为常数,lim(x-2,ax+b/x-2=2,求a,b的值.

lim(x→+∞)(ax²+bx+5)/(3x+2)=5
a=0,b=15
lim(x→2)(ax+b)/(x-2)=2
a=2,b=-4
这样的题目太简单了,没法再详细写了!