Answer
$60$
Work Step by Step
Since, we have
$\sum_{i=1}^{4}(2i^2)=2(1^2+2^2+3^2+4^2)$
or, $=2(1+4+9+16)$
Hence, we get
$=60$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 11 - Section 11.1 - Sequences and Summation Notation - Exercise Set - Page 829: 19
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