Answer
$_6C_3=20$
Work Step by Step
Sixth row of Pascal's triangle: $1~~6~~15~~20~~15~~6~~1$
It corresponds to: $_6C_0~~_6C_1~~_6C_2~~_6C_3~~_6C_4~~_6C_5~~_6C_6~~$
So, $_6C_3=20$
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: 13
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