Proof 5.6: Prove m+n-1 Σ() ()=-(~+-¹) k n n k20

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.6: Permutations
Problem 13E
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Proof 5.6: * Prove
Σ'(*) (*) =n("+" - 1)
Transcribed Image Text:Proof 5.6: * Prove Σ'(*) (*) =n("+" - 1)
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