The value of limx→∞ ax2+bx+cdx2+cx+f , is

Here, the expression assumes the form ∞∞.We notice that the highest power of x in both the numerator and denominator is 2. So, we divide each term in both the numerator and denominator by x2.∴ limx→∞ ax2+bx+cdx2+ex+f=limx→∞ a+bx+cx2d+ex+fx2=a+0+0d+0+0=ad