1. lim (3n2 + n + 1)/(5n3 - 2n + 2) n→∞ 2. In order to solve this problem, do you just think about what happens when n is replaced with a really big number? So, in this case, the numerator only has an n2 and an n, but the denominator has an n3 and an n... So the bottom would always be bigger than the top. So the limit goes to zero? Thanks.