Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 11 - 11.1 - Sequences and Series - 11.1 Exercises - Page 777: 42



Work Step by Step

$a_1=1=2-1=2+(-1)^1$ $a_2=3=2+1=2+(-1)^2$ $a_3=1=2-1=2+(-1)^3$ $a_4=3=2+1=2+(-1)^4$ $a_5=1=2-1=2+(-1)^5$ We can conclude that $a_n=2+(-1)^n$
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