Suppose that in a class, there are n many boys and n many girls. Among these 2n many people, we will choose n many people. Counting in two different ways, show that Σ()=(*)
Suppose that in a class, there are n many boys and n many girls. Among these 2n many people, we will choose n many people. Counting in two different ways, show that Σ()=(*)
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:(51) Suppose that in a class, there are n many boys and n many girls. Among
these 2n many people, we will choose n many people. Counting in two
different ways, show that
2
Σ(%) = (n).
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