Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

APPENDIX E - Sigma Notation - E Exercises - Page A 38: 8



Work Step by Step

We expand the sigma notation by writing $j^{2}$ as $j$ increases from n to n+3: $\displaystyle \sum_{j=n}^{n+3}j^{2}=n^{2}+(n+1)^{2}+(n+2)^{2}+(n+3)^{2}$ (We could expand this, but this is not required of the problem.)
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