Answer
$-20$
Work Step by Step
In order to calculate the first $4$ terms of the sequence we will have to plug $ n=1,2,3,4$ into the given equation.
So, we get $ a_1=-1,a_2=1, a_3=-25; a_4=6; a_5=-24$
Thus, we have the sum $=-1+1-2+6-24=-20$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 10 - Review Exercises - Page 1124: 9
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.
