Answer
$a_n= 4n-2$, $S_{10}= 200$
Work Step by Step
Given the sequence $2,6,10,14,18$, we have $6-2=4, 10-6=4...$ and it can be identified as an arithmetic sequence. We have $a_n=2+(n-1)4=4n-2$ and $S_{10}=\frac{10}{2}(2+4(10)-2)=200$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 11 - Further Topics in Algebra - Summary Exercises on Sequences and Series - Exercises - Page 1038: 12
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.
