Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 11 - Further Topics in Algebra - 11.4 The Binomial Theorem - 11.4 Exercises: 4

Answer

$35$

Work Step by Step

$7C_{3}==\dfrac {7!}{3!\left( 7-3\right) !}=\dfrac {7!}{3!\times 4!}=\dfrac {5\times 6\times 7}{3!}=35 $
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