Answer
$a_1=1$
$a_2=3$
$a_3=4$
$a_4=7$
Work Step by Step
$a_1=1$
$a_2=3$
$a_3=a_1+a_2=1+3=4$
$a_4=a_2+a_3=3+4=7$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 11 - Further Topics in Algebra - 11.1 Sequences and Series - 11.1 Exercises - Page 1014: 34
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