Find an expression for sup in terms of inf E, sup E, inf F, sup F and prove it. 2F
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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Transcribed Image Text:Assume that E, F CR are nonempty bounded sets such that inf E > 0 and
inf F > 0, and define
{
E
: x E E, y E F
2y
2F
E
Find an expression for sup in terms of inf E, sup E, inf F, sup F and prove it.
2F
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