3. Let e be a cluster point of a subset A of R and letf: A+R be a function. Suppose for every sequence (a,) in A such that lim a, = e, the sequence (f(u.)) is a Cauchy sequence. Prove that lim f(x) exists.
3. Let e be a cluster point of a subset A of R and letf: A+R be a function. Suppose for every sequence (a,) in A such that lim a, = e, the sequence (f(u.)) is a Cauchy sequence. Prove that lim f(x) exists.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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![3. Let e be a cluster point of a subset A of R and letf: A+R be a function. Suppose for every
sequence (a,) in A such that lim a, = e, the sequence (f(u.)) is a Cauchy sequence. Prove
that lim f(x) exists.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F417549e5-2f85-4501-824f-5e9b4cfcb822%2F6f1203f2-e22e-4270-be18-504c50c58f6c%2Fmyz6vt.jpeg&w=3840&q=75)
Transcribed Image Text:3. Let e be a cluster point of a subset A of R and letf: A+R be a function. Suppose for every
sequence (a,) in A such that lim a, = e, the sequence (f(u.)) is a Cauchy sequence. Prove
that lim f(x) exists.
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