1. Let a n =6(0.7) (n-1) - (0.5) n (a) Find the lim n>inf a n ....
Question:
1. Let an=6(0.7)(n-1) - (0.5)n
(a) Find the limn>inf an . Does the sequence {an} converge or diverge? Explain why.
(b) Does the series, SUMinfn=1an converge or diverge? if it converges find the sum SUMinfn=1 . If it diverges explain why.
(c) Let sn = SUMinfi=1 ai . Does the sequence {sn} converge or diverge? If it converges, find the limit limn>inf sn . if it diverges, explain why.
2. Let an= (n2+3)/(4n2+2n)
(a) Find the limn>inf an . Does the sequence {an} converge or diverge? Explain why.
(b) Does the series, SUMinfn=1an converge or diverge? if it converges find the sum SUMinfn=1 . If it diverges explain why.
(c) Let sn = SUMinfi=1 ai . Does the sequence {sn} converge or diverge? If it converges, find the limit limn>inf sn . If it diverges, explain why.