Answer
$2$
Work Step by Step
Since, we have from the graph:
$\sum_{i=4}^{5}(\dfrac{a_i}{b_i})^2=(\dfrac{2}{-2})^2+(\dfrac{4}{-4})^2$
or, $=1+1$
or, $=2$
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: 53
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