Let f : R → R be a function that is discontinuous at x € R. Show that there exists n > 0 such that for all a, b such that a < x < b sup f(y) – inf f(y) > n yE[a,b] yɛla,b]
Let f : R → R be a function that is discontinuous at x € R. Show that there exists n > 0 such that for all a, b such that a < x < b sup f(y) – inf f(y) > n yE[a,b] yɛla,b]
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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![Let f : R → R be a function that is discontinuous at x E R. Show that there exists n > 0 such that
for all a, b such that a < x < b
sup f(y) – inf f(y) > n
yE[a,b]
yE[a,b]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9c60ec4d-e142-4a76-a05f-22b3f1501d0e%2Ff90c5cd5-3ed5-4f3e-a29e-633cc206dbe9%2Fm3z915_processed.png&w=3840&q=75)
Transcribed Image Text:Let f : R → R be a function that is discontinuous at x E R. Show that there exists n > 0 such that
for all a, b such that a < x < b
sup f(y) – inf f(y) > n
yE[a,b]
yE[a,b]
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