Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 10 - Section 10.1 - Sequences and Summation Notation - Exercise Set - Page 1048: 24

Answer

306

Work Step by Step

$\frac{18!}{16!}$ Try to reduce the fraction before performing the multiplications. We can express 18! as 18! = 18*17* 16!. We can divide both the numerator and the denominator by the common factor, 16!. $\frac{18!}{16!}$ = $\frac{18* 17* 16!}{16!}$ = 18*17= 306
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