Decide whether or not the infinite sequence is a cauchy sequence. If it is not a cauchy sequence, find at least one subsequence which is a cauchy sequence. In each case, n=1,2,... xn= ∑j=1n (1/j!)
Decide whether or not the infinite sequence is a cauchy sequence. If it is not a cauchy sequence, find at least one subsequence which is a cauchy sequence. In each case, n=1,2,... xn= ∑j=1n (1/j!)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
Decide whether or not the infinite sequence is a cauchy sequence. If it is not a cauchy sequence, find at least one subsequence which is a cauchy sequence. In each case, n=1,2,...
xn= ∑j=1n (1/j!)
Expert Solution
Step 1: Solution
The given sequence is Cauchy sequence.
Here,
Let p be any natural number.
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