Let (an) be the sequence defined by an 2.5.8 (3n - 1) (n+1)! 4n+1 ... 1 for all n € N. Determine if (an) is monotonic. Find a lower bound and an upper bound, if any, of (an). Is (an) bounded? Is (an) convergent? Justify your answer.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Monotone and Bounded Sequences
Example 3.12
Let (an) be the sequence defined by
an
2.5.8(3n-1)
(n+1)! 4n+1
1
for all n E N.
Determine if (an) is monotonic.
Find a lower bound and an upper bound, if any, of (an). Is (an)
bounded?
Is (an) convergent? Justify your answer.
Transcribed Image Text:Monotone and Bounded Sequences Example 3.12 Let (an) be the sequence defined by an 2.5.8(3n-1) (n+1)! 4n+1 1 for all n E N. Determine if (an) is monotonic. Find a lower bound and an upper bound, if any, of (an). Is (an) bounded? Is (an) convergent? Justify your answer.
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