Answer
$1$
Work Step by Step
Using the definition of the factorial of a number, the expression $
1!
$ evaluates to $
1
$.
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 11 - Section 11.5 - The Binomial Theorem - Vocabulary, Readiness & Video Check - Page 663: 2
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