Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 11 - Section 11.3 - Geometric Sequences and Series - Exercise Set - Page 855: 59


Arithmetic sequence

Work Step by Step

From the statement, we have $a_n=n+5$ if $n=1,2,3,4$, then $a_4=${$6,7,8,9$}. This implies that these terms form an Arithmetic sequence with common difference $d=1$ . Hence, the correct answer will be Arithmetic sequence .
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