Discrete Mathematics with Applications 4th Edition

Published by Cengage Learning
ISBN 10: 0-49539-132-8
ISBN 13: 978-0-49539-132-6

Chapter 5 - Sequences, Mathematical Induction, and Recursion - Exercise Set 5.1 - Page 243: 66

Answer

$\frac{1}{n\times(n+1)}$

Work Step by Step

$\frac{(n-1)!}{(n+1)!}=\frac{(n-1)!}{(n+1)\times n\times(n-1)!}=\frac{1}{n\times(n+1)}$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.