Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 11 - Counting Methods and Probability Theory - 11.2 Permutations - Exercise Set 11.2: 31

Answer

1716

Work Step by Step

$\frac{13!}{(13-3)!}$ Step 1: (13 -3)! = (10)! Step 2: $\frac{13!}{10!}$ = $\frac{13*12*11*10!}{10!}$ Since 10! is in the numerator and the denominator, cancel 10! 13*12*11 = 1716
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