Calculate ∪∞n=1 An and ∩∞n=1 Anwhere for each n ∈N the set An is defined as:                                                           (vii) An= [−1, 3 + (1/(n) ] ∪ [5, (5n + 1)/(n) ) (viii) An= ( (−1/(n)), 1] ∪(2, (3n −1)/(n) ]

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Calculate ∪∞n=1 An and ∩∞n=1 Anwhere for each n ∈N the set An is defined as:                                                           (vii) An= [−1, 3 + (1/(n) ] ∪ [5, (5n + 1)/(n) )
(viii) An= ( (−1/(n)), 1] ∪(2, (3n −1)/(n) ]

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