7. S= {x: 0
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
7 pls
Transcribed Image Text:PROBLEMS
In Problems 1 through 8 find 1.u.b. S and g.l.b. S. State whether or not these
numbers are in S.
1. S = {x: 0 < x < 3}
2. S = {x: x²-3 <0}
3. S= {x: x² - 2x - 3 < 0}
4. S = {y: y = x/(x + 1), x ≥ 0}
5. S = {S: S, = Ei
6. S = {S: S = 1 +
7. S = {x: 0 < x < 5, cos x = 0}
(1/2¹), n = 1, 2,...}
((-1)/i!), n = 1, 2,...}
ib
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