Answer
$a_1=7$
$a_2=5$
$a_3=3$
$a_4=1$
$a_5=-1$
Work Step by Step
$a_1=7,~~a_{n+1}=a_n-2$
$a_2=a_1-2=7-2=5$
$a_3=a_2-2=5-2=3$
$a_4=a_3-2=3-2=1$
$a_5=a_4-2=1-2=-1$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 11 - 11.2 - Arithmetic Sequences and Partial Sums - 11.2 Exercises - Page 786: 39
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