Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 11 - Section 11.1 - Sequences and Summation Notation - Exercise Set - Page 830: 64

Answer

See the explanation below.

Work Step by Step

$n!$ defines all the numbers starts from $n$ and ends at $1$. Let us take an example $3!$ $3!= 3 \cdot 2 \cdot 1=6$
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