Answer
$a_1=-2$
$a_2=-4$
$a_3=-9$
$a_4=-23$
$a_5=-64$
Work Step by Step
If $a_n=n+3a_{n-1}$ and $a_1=-2$, then
$a_2=2+3a_{1}=2+3(-2)=-4$
$a_3=3+3a_{2}=3+3(-4)=-9$
$a_4=4+3a_{3}=4+3(-9)=-23$
$a_5=5+3a_{4}=5+3(-23)=-64$
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: 42
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