# 1ปรนัยlimn→∞8n3+2n2+56n3−5n+3\lim_{n\rightarrow\infty}\frac{8n^3+2n^2+5}{6n^3-5n+3}limn→∞6n3−5n+38n3+2n2+54343\frac433434\frac3443
# 2ปรนัยlimx→∞5x2−4x2x2+3\lim_{x\to\infty}\frac{5x^2-4x}{2x^2+3}limx→∞2x2+35x2−4x52\frac5225−52-\frac52−2543\frac4334
# 3ปรนัยlimn→∞10n5+n4+31n6\lim_{n\rightarrow\infty}\frac{10n^5+n^4+31}{n^6}limn→∞n610n5+n4+310หาค่าไม่ได้10
# 4ปรนัยlimx→∞4+4x31−x2+7x3\lim_{x\to\infty}\frac{4+4x^3}{1-x^2+7x^3}limx→∞1−x2+7x34+4x30หาค่าไม่ได้47\frac4774