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Discrete Structures – CNS2300. Text Discrete Mathematics and Its Applications (5 th Edition) Kenneth H. Rosen Chapter 4 Counting. Section 4.4. Binomial Coefficients. Pascal’s Triangle. The Binomial Theorem. Let x and y be variables, and let n be a positive integer: Then.
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Discrete Structures – CNS2300 Text Discrete Mathematics and Its Applications (5th Edition) Kenneth H. Rosen Chapter 4 Counting
Section 4.4 Binomial Coefficients
Pascal’s Triangle The Binomial Theorem Let x and y be variables, and let n be a positive integer: Then
Pascal’s Identity You are probably most familiar with this identity from Pascal’s Triangle, used in algebra. 11 11 2 11 3 3 11 4 6 4 11 5 10 10 5 11 6 15 20 15 6 1
Pascal’s Identity You are probably most familiar with this identity from Pascal’s Triangle, used in algebra. 11 11 2 11 3 3 11 4 6 4 11 5 10 10 5 11 6 15 20 15 6 1 C(5,1)=C(4,0)+C(4,1)
1 1 2 3 5 8 13 21 Pascal’s Triangle 11 11 2 11 3 3 11 4 6 4 11 5 10 10 5 11 6 15 20 15 6 11 7 21 35 35 21 1
Vandermonde’s Identity Let m, n, and r be nonnegative integers with r not exceeding either m or n. Then