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 - Page 701: 18



Work Step by Step

$\frac{17!}{9!}$ = $\frac{17*16*15*14*13*12*11*10*9!}{9!}$ 9! is common in the numerator and the denominator of the given expression, so cancel 9!. Therefore, evaluate $17*16*15*14*13*12*11*10 = 980,179,200$
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