Explanation Given data: The given expression is ( n k − 1 ) + ( n k ) = ( n + 1 k ) . Formula used: Write the expression for binominal coefficient notation as follows. ( n k ) = C n k (1) Where, n is the number of objects, and k is the number of objects taken at a time. Write the expression for total number of combinations of n objects taken k at a time as follows. C n k = n ! k ! ( n − k ) ! (2) Calculation: From equation (2), substitute n ! k ! ( n − k ) ! for C n k in equation (1) as follows. ( n k ) = n ! k ! ( n − k ) ! (3) Use equation (3), and rewrite the given expression as follows. n ! ( k − 1 ) ! [ n − ( k − 1 ) ] ! + n ! k ! ( n − k ) ! = ( n + 1 ) ! k ! [ ( n + 1 ) − k ] ! Simplify the expression as follows. n ! ( k − 1 ) ! ( n − k + 1 ) ! + n ! k ! ( n − k ) ! = ( n + 1 ) ! k ! ( n − k + 1 ) ! { n ⋅ ( n − k ) ! ( k − 1 ) ! [ ( n − k + 1 ) ⋅ ( n − k ) ! ] + n ⋅ ( n − k ) ! [ k ⋅ ( k − 1 ) ! ] ( n − k ) ! } = ( n + 1 ) ! k ! ( n − k + 1 ) ! { ∵ n ! = n ⋅ ( n − k ) ! }

Algebra and Trigonometry: Graphs and Models (6th Edition)

6th Edition

ISBN: 9780134179049

Author: Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen, Judith A. Penna

Publisher: PEARSON

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Chapter 11.6, Problem 45E

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Prove the expression (nk−1)+(nk)=(n+1k) for any natural numbers n and k, k≤n.

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Chapter 11.6, Problem 44E

Chapter 11.7, Problem 1E

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Chapter 11 Solutions

Algebra and Trigonometry: Graphs and Models (6th Edition)

Ch. 11.1 - Prob. 1E Ch. 11.1 - Prob. 2E Ch. 11.1 - Prob. 3E Ch. 11.1 - Prob. 4E Ch. 11.1 - Prob. 5E Ch. 11.1 - Prob. 6E Ch. 11.1 - Prob. 7E Ch. 11.1 - Prob. 8E Ch. 11.1 - Prob. 9E Ch. 11.1 - Prob. 10E

Ch. 11.1 - Prob. 11E Ch. 11.1 - Prob. 12E Ch. 11.1 - Prob. 13E Ch. 11.1 - Prob. 14E Ch. 11.1 - Prob. 15E Ch. 11.1 - Prob. 16E Ch. 11.1 - Prob. 17E Ch. 11.1 - Prob. 18E Ch. 11.1 - Prob. 19E Ch. 11.1 - Prob. 20E Ch. 11.1 - Prob. 23E Ch. 11.1 - Prob. 24E Ch. 11.1 - Prob. 25E Ch. 11.1 - Prob. 26E Ch. 11.1 - Prob. 27E Ch. 11.1 - Prob. 28E Ch. 11.1 - Prob. 29E Ch. 11.1 - Prob. 30E Ch. 11.1 - Prob. 31E Ch. 11.1 - Prob. 32E Ch. 11.1 - Prob. 33E Ch. 11.1 - Prob. 34E Ch. 11.1 - Prob. 35E Ch. 11.1 - Prob. 36E Ch. 11.1 - Prob. 37E Ch. 11.1 - Prob. 38E Ch. 11.1 - Prob. 39E Ch. 11.1 - Prob. 40E Ch. 11.1 - Prob. 41E Ch. 11.1 - Prob. 42E Ch. 11.1 - Prob. 43E Ch. 11.1 - Prob. 44E Ch. 11.1 - Prob. 45E Ch. 11.1 - Prob. 46E Ch. 11.1 - Prob. 47E Ch. 11.1 - Prob. 48E Ch. 11.1 - Prob. 49E Ch. 11.1 - Prob. 50E Ch. 11.1 - Prob. 51E Ch. 11.1 - Prob. 52E Ch. 11.1 - Prob. 53E Ch. 11.1 - Prob. 54E Ch. 11.1 - Prob. 55E Ch. 11.1 - Prob. 56E Ch. 11.1 - Prob. 57E Ch. 11.1 - Write sigma notation. Answers may vary. 58. 3 + 6...Ch. 11.1 - Prob. 59E Ch. 11.1 - Prob. 60E Ch. 11.1 - Prob. 61E Ch. 11.1 - Prob. 62E Ch. 11.1 - Prob. 63E Ch. 11.1 - Prob. 64E Ch. 11.1 - Prob. 65E Ch. 11.1 - Prob. 66E Ch. 11.1 - Prob. 67E Ch. 11.1 - Prob. 68E Ch. 11.1 - Prob. 69E Ch. 11.1 - Prob. 70E Ch. 11.1 - Prob. 71E Ch. 11.1 - Prob. 72E Ch. 11.1 - Prob. 73E Ch. 11.1 - Prob. 74E Ch. 11.1 - Prob. 75E Ch. 11.1 - Prob. 78E Ch. 11.1 - Prob. 79E Ch. 11.1 - Prob. 80E Ch. 11.1 - Prob. 81E Ch. 11.1 - Prob. 82E Ch. 11.1 - Prob. 83E Ch. 11.1 - Prob. 84E Ch. 11.1 - Prob. 85E Ch. 11.1 - Prob. 86E Ch. 11.2 - Prob. 1E Ch. 11.2 - Prob. 2E Ch. 11.2 - Prob. 3E Ch. 11.2 - Prob. 4E Ch. 11.2 - Prob. 5E Ch. 11.2 - Prob. 6E Ch. 11.2 - Prob. 7E Ch. 11.2 - Prob. 8E Ch. 11.2 - Prob. 9E Ch. 11.2 - Prob. 10E Ch. 11.2 - Prob. 11E Ch. 11.2 - Prob. 12E Ch. 11.2 - Prob. 13E Ch. 11.2 - Prob. 14E Ch. 11.2 - Prob. 15E Ch. 11.2 - Prob. 16E Ch. 11.2 - Prob. 17E Ch. 11.2 - Prob. 18E Ch. 11.2 - Prob. 19E Ch. 11.2 - Prob. 20E Ch. 11.2 - Prob. 21E Ch. 11.2 - Prob. 22E Ch. 11.2 - Prob. 23E Ch. 11.2 - Prob. 24E Ch. 11.2 - Prob. 25E Ch. 11.2 - Prob. 26E Ch. 11.2 - Prob. 27E Ch. 11.2 - Prob. 28E Ch. 11.2 - Prob. 29E Ch. 11.2 - 30. Find the sum of all multiples of 4 that are...Ch. 11.2 - Prob. 31E Ch. 11.2 - Prob. 32E Ch. 11.2 - Prob. 33E Ch. 11.2 - Prob. 34E Ch. 11.2 - Prob. 35E Ch. 11.2 - Prob. 36E Ch. 11.2 - Prob. 37E Ch. 11.2 - Prob. 38E Ch. 11.2 - Prob. 39E Ch. 11.2 - Prob. 40E Ch. 11.2 - Prob. 41E Ch. 11.2 - Prob. 42E Ch. 11.2 - Prob. 43E Ch. 11.2 - Prob. 44E Ch. 11.2 - Prob. 45E Ch. 11.2 - Prob. 46E Ch. 11.2 - Prob. 47E Ch. 11.2 - Prob. 48E Ch. 11.2 - Prob. 49E Ch. 11.2 - Prob. 50E Ch. 11.2 - Prob. 51E Ch. 11.2 - Prob. 52E Ch. 11.2 - Prob. 53E Ch. 11.2 - Prob. 54E Ch. 11.2 - Prob. 55E Ch. 11.2 - Prob. 56E Ch. 11.2 - Prob. 57E Ch. 11.3 - Prob. 1E Ch. 11.3 - Prob. 2E Ch. 11.3 - Prob. 3E Ch. 11.3 - Prob. 4E Ch. 11.3 - Prob. 5E Ch. 11.3 - Prob. 6E Ch. 11.3 - Prob. 7E Ch. 11.3 - Prob. 8E Ch. 11.3 - Prob. 9E Ch. 11.3 - Prob. 10E Ch. 11.3 - Prob. 11E Ch. 11.3 - Prob. 12E Ch. 11.3 - Prob. 13E Ch. 11.3 - Prob. 14E Ch. 11.3 - Prob. 15E Ch. 11.3 - Prob. 16E Ch. 11.3 - Prob. 17E Ch. 11.3 - Prob. 18E Ch. 11.3 - Prob. 19E Ch. 11.3 - 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Prob. 5E Ch. 11.5 - Prob. 6E Ch. 11.5 - Prob. 7E Ch. 11.5 - Prob. 8E Ch. 11.5 - Prob. 9E Ch. 11.5 - Prob. 10E Ch. 11.5 - Prob. 11E Ch. 11.5 - Prob. 12E Ch. 11.5 - Prob. 13E Ch. 11.5 - Prob. 14E Ch. 11.5 - Prob. 15E Ch. 11.5 - Prob. 16E Ch. 11.5 - Prob. 17E Ch. 11.5 - Prob. 18E Ch. 11.5 - Prob. 19E Ch. 11.5 - Prob. 20E Ch. 11.5 - Prob. 21E Ch. 11.5 - Prob. 22E Ch. 11.5 - Prob. 23E Ch. 11.5 - Prob. 24E Ch. 11.5 - Prob. 25E Ch. 11.5 - Prob. 26E Ch. 11.5 - Prob. 27E Ch. 11.5 - Prob. 28E Ch. 11.5 - Prob. 29E Ch. 11.5 - Prob. 30E Ch. 11.5 - Prob. 31E Ch. 11.5 - Prob. 32E Ch. 11.5 - Prob. 33E Ch. 11.5 - Prob. 34E Ch. 11.5 - Prob. 35E Ch. 11.5 - Prob. 36E Ch. 11.5 - Prob. 37E Ch. 11.5 - Prob. 38E Ch. 11.5 - Prob. 39E Ch. 11.5 - Prob. 40E Ch. 11.5 - Prob. 41E Ch. 11.5 - Prob. 42E Ch. 11.5 - Prob. 43E Ch. 11.5 - Prob. 44E Ch. 11.5 - Prob. 45E Ch. 11.5 - Prob. 46E Ch. 11.5 - Prob. 47E Ch. 11.5 - Prob. 48E Ch. 11.5 - Prob. 49E Ch. 11.5 - Prob. 50E Ch. 11.5 - Prob. 51E Ch. 11.5 - Prob. 52E Ch. 11.6 - Prob. 1E Ch. 11.6 - Prob. 2E Ch. 11.6 - Prob. 3E Ch. 11.6 - Prob. 4E Ch. 11.6 - Prob. 5E Ch. 11.6 - Prob. 6E Ch. 11.6 - Prob. 7E Ch. 11.6 - Prob. 8E Ch. 11.6 - Prob. 9E Ch. 11.6 - Prob. 10E Ch. 11.6 - Prob. 11E Ch. 11.6 - Prob. 12E Ch. 11.6 - Prob. 13E Ch. 11.6 - Prob. 14E Ch. 11.6 - Prob. 15E Ch. 11.6 - Prob. 16E Ch. 11.6 - Prob. 17E Ch. 11.6 - Prob. 18E Ch. 11.6 - Prob. 19E Ch. 11.6 - Prob. 20E Ch. 11.6 - Prob. 21E Ch. 11.6 - Prob. 22E Ch. 11.6 - Prob. 23E Ch. 11.6 - Prob. 24E Ch. 11.6 - Prob. 25E Ch. 11.6 - Prob. 26E Ch. 11.6 - Prob. 27E Ch. 11.6 - Prob. 28E Ch. 11.6 - Prob. 29E Ch. 11.6 - Prob. 30E Ch. 11.6 - Prob. 31E Ch. 11.6 - Prob. 32E Ch. 11.6 - Prob. 33E Ch. 11.6 - Prob. 34E Ch. 11.6 - Prob. 35E Ch. 11.6 - Prob. 36E Ch. 11.6 - Prob. 37E Ch. 11.6 - Prob. 38E Ch. 11.6 - Prob. 39E Ch. 11.6 - Prob. 40E Ch. 11.6 - Prob. 41E Ch. 11.6 - Prob. 42E Ch. 11.6 - Prob. 43E Ch. 11.6 - Prob. 44E Ch. 11.6 - Prob. 45E Ch. 11.7 - Prob. 1E Ch. 11.7 - Prob. 2E Ch. 11.7 - Prob. 3E Ch. 11.7 - Prob. 4E Ch. 11.7 - Prob. 5E Ch. 11.7 - Prob. 6E Ch. 11.7 - Prob. 7E Ch. 11.7 - Prob. 8E Ch. 11.7 - Prob. 9E Ch. 11.7 - Prob. 10E Ch. 11.7 - Prob. 11E Ch. 11.7 - Prob. 12E Ch. 11.7 - Prob. 13E Ch. 11.7 - Prob. 14E Ch. 11.7 - Prob. 15E Ch. 11.7 - Prob. 16E Ch. 11.7 - Prob. 17E Ch. 11.7 - Prob. 18E Ch. 11.7 - Prob. 19E Ch. 11.7 - Prob. 20E Ch. 11.7 - Prob. 21E Ch. 11.7 - Find the indicated term of the binomial...Ch. 11.7 - Prob. 23E Ch. 11.7 - Prob. 24E Ch. 11.7 - Prob. 25E Ch. 11.7 - Prob. 26E Ch. 11.7 - Prob. 27E Ch. 11.7 - Prob. 28E Ch. 11.7 - Prob. 29E Ch. 11.7 - Prob. 30E Ch. 11.7 - Prob. 31E Ch. 11.7 - Prob. 32E Ch. 11.7 - Prob. 33E Ch. 11.7 - Prob. 34E Ch. 11.7 - Prob. 35E Ch. 11.7 - Prob. 36E Ch. 11.7 - Prob. 37E Ch. 11.7 - Prob. 38E Ch. 11.7 - Prob. 39E Ch. 11.7 - Prob. 40E Ch. 11.7 - Prob. 41E Ch. 11.7 - Prob. 42E Ch. 11.7 - Prob. 43E Ch. 11.7 - Prob. 44E Ch. 11.7 - Prob. 45E Ch. 11.7 - Prob. 46E Ch. 11.7 - Prob. 47E Ch. 11.7 - Prob. 48E Ch. 11.7 - Prob. 49E Ch. 11.7 - Prob. 50E Ch. 11.7 - Prob. 51E Ch. 11.7 - Prob. 52E Ch. 11.7 - Prob. 53E Ch. 11.7 - Find the sum. 54. Ch. 11.7 - Prob. 55E Ch. 11.7 - Prob. 56E Ch. 11.7 - Prob. 57E Ch. 11.8 - Prob. 1E Ch. 11.8 - Prob. 2E Ch. 11.8 - Prob. 3E Ch. 11.8 - Prob. 4E Ch. 11.8 - Prob. 5E Ch. 11.8 - Prob. 6E Ch. 11.8 - Prob. 7E Ch. 11.8 - Prob. 8E Ch. 11.8 - Prob. 9E Ch. 11.8 - Prob. 10E Ch. 11.8 - Prob. 11E Ch. 11.8 - Prob. 12E Ch. 11.8 - Prob. 13E Ch. 11.8 - Prob. 14E Ch. 11.8 - Prob. 15E Ch. 11.8 - Prob. 16E Ch. 11.8 - Prob. 17E Ch. 11.8 - Prob. 18E Ch. 11.8 - Prob. 19E Ch. 11.8 - Prob. 20E Ch. 11.8 - Prob. 21E Ch. 11.8 - Prob. 22E Ch. 11.8 - Prob. 23E Ch. 11.8 - Prob. 24E Ch. 11.8 - Prob. 25E Ch. 11.8 - Prob. 26E Ch. 11.8 - Prob. 27E Ch. 11.8 - Prob. 28E Ch. 11.8 - Prob. 29E Ch. 11.8 - Prob. 30E Ch. 11.8 - Prob. 31E Ch. 11.8 - Prob. 32E Ch. 11.8 - Prob. 33E Ch. 11.8 - Prob. 34E Ch. 11.8 - Prob. 35E Ch. 11.8 - Prob. 36E Ch. 11.8 - Prob. 37E Ch. 11.8 - Prob. 38E Ch. 11.8 - Prob. 39E Ch. 11.8 - Prob. 40E Ch. 11 - Prob. 1MC Ch. 11 - Prob. 2MC Ch. 11 - Prob. 3MC Ch. 11 - Prob. 4MC Ch. 11 - Prob. 5MC Ch. 11 - Prob. 6MC Ch. 11 - Prob. 7MC Ch. 11 - Prob. 8MC Ch. 11 - Prob. 9MC Ch. 11 - Prob. 10MC Ch. 11 - Prob. 11MC Ch. 11 - Prob. 12MC Ch. 11 - Prob. 13MC Ch. 11 - Prob. 14MC Ch. 11 - Prob. 15MC Ch. 11 - Prob. 16MC Ch. 11 - Prob. 17MC Ch. 11 - Prob. 18MC Ch. 11 - Prob. 19MC Ch. 11 - Prob. 20MC Ch. 11 - Prob. 21MC Ch. 11 - Prob. 22MC Ch. 11 - Prob. 23MC Ch. 11 - Prob. 1RE Ch. 11 - Prob. 2RE Ch. 11 - Prob. 3RE Ch. 11 - Prob. 4RE Ch. 11 - Prob. 5RE Ch. 11 - Prob. 6RE Ch. 11 - Prob. 7RE Ch. 11 - Prob. 9RE Ch. 11 - Prob. 10RE Ch. 11 - Prob. 11RE Ch. 11 - Prob. 12RE Ch. 11 - Prob. 13RE Ch. 11 - Prob. 14RE Ch. 11 - Prob. 15RE Ch. 11 - Prob. 16RE Ch. 11 - Prob. 17RE Ch. 11 - Prob. 18RE Ch. 11 - Prob. 19RE Ch. 11 - Prob. 20RE Ch. 11 - Prob. 21RE Ch. 11 - Prob. 22RE Ch. 11 - Prob. 23RE Ch. 11 - Prob. 24RE Ch. 11 - Prob. 25RE Ch. 11 - Prob. 26RE Ch. 11 - Prob. 27RE Ch. 11 - Prob. 28RE Ch. 11 - Prob. 29RE Ch. 11 - Prob. 30RE Ch. 11 - Prob. 31RE Ch. 11 - Prob. 32RE Ch. 11 - Prob. 33RE Ch. 11 - Prob. 34RE Ch. 11 - Prob. 35RE Ch. 11 - Prob. 36RE Ch. 11 - Prob. 37RE Ch. 11 - Prob. 38RE Ch. 11 - Prob. 39RE Ch. 11 - Prob. 40RE Ch. 11 - Prob. 41RE Ch. 11 - Prob. 42RE Ch. 11 - Prob. 43RE Ch. 11 - Prob. 44RE Ch. 11 - Prob. 45RE Ch. 11 - Prob. 46RE Ch. 11 - Prob. 47RE Ch. 11 - Prob. 48RE Ch. 11 - Prob. 49RE Ch. 11 - Prob. 50RE Ch. 11 - Prob. 51RE Ch. 11 - Prob. 52RE Ch. 11 - Prob. 53RE Ch. 11 - Prob. 54RE Ch. 11 - Prob. 55RE Ch. 11 - Prob. 56RE Ch. 11 - Prob. 57RE Ch. 11 - Prob. 58RE Ch. 11 - Prob. 59RE Ch. 11 - Prob. 60RE Ch. 11 - Prob. 61RE Ch. 11 - Prob. 62RE Ch. 11 - Prob. 64RE Ch. 11 - Prob. 1T Ch. 11 - Prob. 2T Ch. 11 - Prob. 3T Ch. 11 - Prob. 4T Ch. 11 - Prob. 5T Ch. 11 - Prob. 6T Ch. 11 - Prob. 7T Ch. 11 - Prob. 8T Ch. 11 - Prob. 9T Ch. 11 - Prob. 10T Ch. 11 - Prob. 11T Ch. 11 - Prob. 12T Ch. 11 - Prob. 13T Ch. 11 - Prob. 14T Ch. 11 - Prob. 15T Ch. 11 - Prob. 16T Ch. 11 - Prob. 17T Ch. 11 - Prob. 18T Ch. 11 - Prob. 19T Ch. 11 - Prob. 20T Ch. 11 - Prob. 21T Ch. 11 - Prob. 22T Ch. 11 - Prob. 23T Ch. 11 - Prob. 24T Ch. 11 - Prob. 25T Ch. 11 - Prob. 26T Ch. 11 - Prob. 27T Ch. 11 - 28. 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Prove the expression ( n k − 1 ) + ( n k ) = ( n + 1 k ) for any natural numbers n and k , k ≤ n .

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Chapter 11 Solutions