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: 17



Work Step by Step

$\frac{19!}{11!}$ = $\frac{19*18*17*16*15*14*13*12*11!}{11!}$ 11! is common in the numerator and the denominator of the given expression, so cancel 11!. Therefore, evaluate $19*18*17*16*15*14*13*12 = 3,047,466,240$
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