Answer
$a_n = (-1)^{n}$
Work Step by Step
$a_0 = (-1)^{1} = -1$
$a_1 = (-1)^{2} = 1$
$a_2= (-1)^{3} = -1$
Seeing the pattern, $a_n$ should alternate between 1, -1
Discrete Mathematics with Applications 4th Edition
by Epp, Susanna S.
Published by
Cengage Learning
ISBN 10:
0-49539-132-8
ISBN 13:
978-0-49539-132-6
Chapter 5 - Sequences, Mathematical Induction, and Recursion - Exercise Set 5.1 - Page 243: 10
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