Evaluate : `lim_(x->oo)(a x^2+b x+c)/(dx^2+e x+f)dot`

Explanation

`lim_(x->infty) (a x^2+b x+c)/(dx^2+e x+f)`

`= lim_(x->infty) {x^2(a+b/x+c/x^2)}/{x^2(d+e/ x+f/x^2)}`

`=lim_(x->infty) (a+b/x+c/x^2)/ (d+e/ x+f/x^2)`

`=a/d`