Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 12 - Sequences; Induction; the Binomial Theorem - 12.1 Sequences - 12.1 Assess Your Understanding - Page 807: 44


$a_1=-1,a_2=1$ $a_3=2$ $a_4=9$ $a_5=47$

Work Step by Step

If $a_n=a_{n-2}+n(a_{n-1})$ and $a_1=-1,a_2=1$, then $a_3=a_{1}+3(a_{2})=-1+3(1)=2$ $a_4=a_{2}+4(a_{3})=(1)+4(2)=9$ $a_5=a_{3}+5(a_{4})=(2)+5(9)=47$
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.