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a) 4°N®° =(ANB)° b) 4°UB°<(AUB)° c) if A°is open then the largest open subset of A is A°. d) All the above

a) 4°N®° =(ANB)° b) 4°UB°<(AUB)° c) if A°is open then the largest open subset of A is A°. d) All the above

Advanced Engineering Mathematics
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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Which of the following is/are true? a) 4°NB° =(ANB)° b) 4°UB° c(AUB)° c) if A°is open then the largest open subset of A is A°. d) All the above
Transcribed Image Text:Which of the following is/are true? a) 4°NB° =(ANB)° b) 4°UB° c(AUB)° c) if A°is open then the largest open subset of A is A°. d) All the above
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