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: 38



Work Step by Step

In the the given summation there is no $i$ value. Thus, we have $\sum_{i=3}^7 (12)=12+12+12+12+12$ $=12 \times 5$ Hence, $\sum_{i=3}^7(12)=60$
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