explain whether it is convergent, divergent to ±∞, or otherwise divergent (not to too). If it is convergent, find its limit. If it is divergent, find its lim sup and Tim inf. Sn S. = (−1)n-2√n + 12 2n - 3 = n - n 2

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Analysis

explain
whether it is convergent, divergent to t∞, or otherwise divergent (not to
±∞). If it is convergent, find its limit. If it is divergent, find its lim sup and
lim inf.
Sn
=
(-1) 2√n + 12
2n - 3
Sn = n = n²
Transcribed Image Text:explain whether it is convergent, divergent to t∞, or otherwise divergent (not to ±∞). If it is convergent, find its limit. If it is divergent, find its lim sup and lim inf. Sn = (-1) 2√n + 12 2n - 3 Sn = n = n²
Expert Solution
Step 1

What is Sequence:

When a sequence approaches a finite number as the variable approaches infinity, that finite number is referred to as the limit of a sequence. For a convergent sequence, the limit superior and limit inferior are equal to the limit of the sequence. Therefore, when these two limits are different, one can infer that the sequence is not convergent. 

Given:

Given sequences are:

sn=-1n2n+122n-3

sn=n-n2

To Determine:

We test the convergence of the sequences.

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