Prove each statement for positive integers n and r, with r n. Explain why the restriction
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Prove each statement for positive integers n and r, with r ≤ n.
Explain why the restriction r ≤ n is needed in the formulas for C(n, r) and P(n, r).
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Related Book For
College Algebra
ISBN: 978-0134697024
12th edition
Authors: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
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