Answer
$_{12}C_0=1$
Work Step by Step
$_nC_r=\frac{n!}{(n-r)!\times r!}$
$_{12}C_0=\frac{12!}{(12-0)!\times(0!)}=\frac{12!}{12!\times1}=\frac{1}{1}=1$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 11 - 11.5 - The Binomial Theorem - 11.5 Exercises - Page 813: 7
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