Answer
$a_1=A$
$a_2=rA$
$a_3=r^2A$
$a_4=r^3A$
$a_5=r^4A$
Work Step by Step
If $a_n=ra_{n-1}$ and $a_1=A$, then
$a_2=ra_{1}=rA$
$a_3=ra_{2}=r(rA)=r^2A$
$a_4=ra_{3}=(r^2A)=r^3A$
$a_5=ra_{4}=r(r^3A)=r^4A$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 12 - Sequences; Induction; the Binomial Theorem - 12.1 Sequences - 12.1 Assess Your Understanding - Page 807: 46
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