4. Show that if n is a positive integer, then Σ {a₁,...,ak}{1,2,...,n} (Here the sum is over all nonempty subsets of the set of the n smallest positive integers.) 1 a1a2 ak = n

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.2: Properties Of Division
Problem 50E
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4.
Show that if n is a positive integer, then
1
Σ
= n
aja2·.. ak
{a1,...,ak}C{1,2,...,n}
(Here the sum is over all nonempty subsets of the set of the n smallest positive integers.)
Transcribed Image Text:4. Show that if n is a positive integer, then 1 Σ = n aja2·.. ak {a1,...,ak}C{1,2,...,n} (Here the sum is over all nonempty subsets of the set of the n smallest positive integers.)
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