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2. + -+- 1.3 3.5 5.7 + + 1 n (2n-1)(2n+1) 2n+1

2. + -+- 1.3 3.5 5.7 + + 1 n (2n-1)(2n+1) 2n+1

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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1 n + + 1.3 3.5 5.7 (2n-1)(2n+1) 2n+1 3. Let S be a set containing n elements, where n 20. If r is an integer such that 0 srsn, then the number of subsets of S containing exactly r elements is n! r! (n=r)! 2. + +
Transcribed Image Text:1 n + + 1.3 3.5 5.7 (2n-1)(2n+1) 2n+1 3. Let S be a set containing n elements, where n 20. If r is an integer such that 0 srsn, then the number of subsets of S containing exactly r elements is n! r! (n=r)! 2. + +
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