Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 10 - Section 10.1 - Sequences and Summation Notation - Exercise Set - Page 1048: 14

Answer

12,16,20,24

Work Step by Step

To find the first four terms of the sequence whose general term is $a_{n}$ = $a_{n-1}$ + 4, we replace n in the formula with 2,3, and 4. n=1, $a_{1}$ = 12 n=2, $a_{2}$ =$a_{2-1}$ + 4 = $a_{1}$ + 4 Substitute $a_{1}$ as 12 $a_{2}$ = 12+4 = 16 n=3, $a_{3}$ =$a_{3-1}$ + 4 = $a_{2}$ + 4 Substitute $a_{2}$ as 16 $a_{3}$ = 16+4 = 20 n=4,$a_{4}$ =$a_{4-1}$ + 4 = $a_{3}$ + 4 Substitute $a_{3}$ as 20 $a_{4}$ = 20 + 4 = 24 The first four terms are 12,16,20,24.
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.