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: 14



Work Step by Step

$\frac{12!}{10!}$ = $\frac{12*11*10!}{10!}$ 10! is common in the numerator and the denominator of the given expression, so cancel 10!. Therefore, evaluate 12*11 = 132
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