Answer
$4,191,844,505,805,495$
Work Step by Step
RECALL:
${n}\choose{k}$$=\dfrac{n!}{k!(n-k)!}$
Use the formula above to obtain:
${60}\choose{20}$$\require{cancel}
\\=\dfrac{60!}{20!(60-20)!}
\\=\dfrac{60!}{20!40!}
\\=4,191,844,505,805,495$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 9 - Section 9.5 - The Binomial Theorem - 9.5 Assess Your Understanding - Page 676: 14
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