Algebra and Trigonometry 10th Edition

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



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, $_6C_3=20$
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