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: 32

Answer

4080

Work Step by Step

$\frac{17!}{(17-3)!}$ Step 1: (17 -3)! = (14)! Step 2: $\frac{17!}{14!}$ = $\frac{17*16*15*14!}{14!}$ Since 14! is in the numerator and the denominator, cancel 14! 17*16*15= 4080
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