Discrete Mathematics with Applications 4th Edition

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

Chapter 5 - Sequences, Mathematical Induction, and Recursion - Exercise Set 5.1 - Page 244: 74

Answer

$1$

Work Step by Step

$=\frac{5!}{5!(5-5)!}$ $=\frac{5!}{5!(0)!}$ $=\frac{1}{0!}$ $=1$
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