Discrete Mathematics with Applications 4th Edition

Published by Cengage Learning
ISBN 10: 0-49539-132-8
ISBN 13: 978-0-49539-132-6

Chapter 9 - Counting and Probability - Exercise Set 9.6 - Page 590: 6

Answer

((n(n+1)(n+2)(n+3)(n+4)))/120
1520230247

Work Step by Step

(■(A@B)) = (A choose B) (■(5+n-1@5)) = (■(n+4@5)) = (n+4)(n+3)(n+2)(n+1)n(n-1)!/5!(n-1)! = ((n(n+1)(n+2)(n+3)(n+4)))/120
Small 1520230247
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