Answer
$24$
Work Step by Step
$\sum_{k=1}^{4} (2k+1)\\=(2(1)+1)+(2(2)+1)+(2(3)+1)+(2(4)+1)\\=3+5+7+9=24$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 14 - A Preview of Calculus: The Limit, Derivative, and Integral of a Function - 14.5 The Area Problem; The Integral - 14.5 Assess Your Understanding - Page 904: 2
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