Answer
$1,1,1,3,5$
Work Step by Step
$a_{1}=1,\ \quad $
$a_{2}=1,$
$a_{3}=1,$
$.\qquad a_{n}=a_{n-1}+a_{n-2}+a_{n-3}$
$a_{4}=a_{3}+a_{2}+a_{1}=1+1+1=3$
$a_{5}=a_{4}+a_{3}+a_{2}=3+1+1=5$
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 12 - Section 12.1 - Sequences and Summation Notation - 12.1 Exercises - Page 850: 20
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.
