Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 14 - Sequences, Series, and the Binomial Theorem - 14.2 Arithmetic Sequences and Series - 14.2 Exercise Set: 9

Answer

$a_1=\frac{3}{2}$ $d=\frac{3}{4}$

Work Step by Step

In an arithmetic sequence, the common difference can be calculated as the difference of any two subsequent terms: $d=a_2-a_1=\frac{9}{4}-\frac{3}{2}=\frac{3}{4}$ The first term is: $a_1=\frac{3}{2}$.
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