2. Prove each of the following statements using only the corresponding definition: (a) ) Let (an)o be a sequence of real numbers and let 0≤KEZ, LER. We define a sequence (bn)-o by: bn every 0≤n e Z. = an+k for Prove that the sequence (an)-o converges to L if and only if the sequence (bn)no converges to L. n=0 (b) Let (an)1 be a monotonically increasing sequence of real numbers. Prove that (an)n-1 converges in the extended sense, and that lim an = sup {an | neN}. n→∞ (Hint: follow two similar theorems that were proven in Calculus 1).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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2. Prove each of the following statements using only the corresponding
definition:
(a)
:) Let (an)o be a sequence of real numbers and let
0≤KEZ, LER. We define a sequence (bn)no by: bn
every 0≤n e Z.
=
Prove that the sequence (an)o converges to L if and only if the
sequence (bn)no converges to L.
an+k for
(b)
Let (an) be a monotonically increasing sequence of
real numbers. Prove that (an)n-1 converges in the extended sense,
and that lim an = sup {an | neN}.
n→∞
(Hint: follow two similar theorems that were proven in Calculus 1).
Transcribed Image Text:2. Prove each of the following statements using only the corresponding definition: (a) :) Let (an)o be a sequence of real numbers and let 0≤KEZ, LER. We define a sequence (bn)no by: bn every 0≤n e Z. = Prove that the sequence (an)o converges to L if and only if the sequence (bn)no converges to L. an+k for (b) Let (an) be a monotonically increasing sequence of real numbers. Prove that (an)n-1 converges in the extended sense, and that lim an = sup {an | neN}. n→∞ (Hint: follow two similar theorems that were proven in Calculus 1).
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