(a) a sequence {an} that is not monotone (noreventually monotone) but diverges to ?
(b) a divergent sequence {an} such that{an/33} converges
(c) two divergent sequences {an} and {bn}such that {an + bn} converges to 17
(d) two convergent sequences {an} and {bn}such that {an/bn} diverges
(e) a sequence with no convergent subsequence
(f) a Cauchy sequence with an unbounded subsequence
