Answer
2
Work Step by Step
use the formula where $a_{4} = -b_{4} =2, a_{5}= -b_{5} =4$.
$((\frac{2}{-2})^{2} + (\frac{4}{-4})^{2})$
=$(-1)^{2} + (-1)^{2}$
=$1+1$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 8 - Sequences, Induction, and Probability - Exercise Set 8.1 - Page 715: 65
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