Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 11 - 11.1 - Sequences and Series - 11.1 Exercises - Page 779: 104b



Work Step by Step

According to the graph: $a_1=1=\frac{1}{1}=\frac{1!}{0!}$ $a_2=2=\frac{2\times1}{1}=\frac{2!}{1!}$ $a_3=3=\frac{3\times2\times1}{2\times1}=\frac{3!}{2!}$ ... $a_{10}=10=\frac{10\times9\times8\times7\times6\times5\times4\times3\times2\times1}{9\times8\times7\times6\times5\times4\times3\times2\times1}=\frac{10!}{9!}$ $a_n=\frac{n!}{(n-1)!}$
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