n (-1)+(~)-()) m m. n m

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.4: Fractional Expressions
Problem 38E
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Question

Prove the following combinatorial identities

n-1 n-1 n
--)-(-)-()
+
m
m-1
m
Transcribed Image Text:n-1 n-1 n --)-(-)-() + m m-1 m
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