Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 12 - Sequences; Induction; the Binomial Theorem - 12.2 Arithmetic Sequences - 12.2 Assess Your Understanding - Page 814: 3



Work Step by Step

In an arithmetic sequence if we know a term is $a_n$, we know that the common difference is $d$, then $a_{n+1}=a_n+d$. Hence here: $a_6=a_5+d=12+5=17.$
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