Answer
{$2,~1,~-1,~-2,~-1$}
Work Step by Step
$a_{1}=2,~a_{2}=1,~a_{n+1}=a_{n}-a_{n-1}$
$n=2$:
$a_{3}=a_{2}-a_{1}=1-2=-1$
$n=3$:
$a_{4}=a_{3}-a_{2}=-1-1=-2$
$n=4$:
$a_{5}=a_{4}-a_{3}=-2-(-1)=-1$
Multivariable Calculus, 7th Edition
by Stewart, James
Published by
Brooks Cole
ISBN 10:
0-53849-787-4
ISBN 13:
978-0-53849-787-9
Chapter 11 - Infinite Sequences and Series - 11.1 Exercises - Page 724: 12
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