Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 5 - Number Theory and the Real Number System - 5.7 Arithmetic and Geometric Sequences - Concept and Vocabulary Check - Page 329: 2


$a_n=a_1+(n-1)d$; $\text{first term}$; $\text{common difference}$

Work Step by Step

Recall: In an arithmetic sequences, the $n^{\text{th}}$ term is given by the formula: $$a_n=a_1+(n-1)d$$ where $d$=common difference $a_1$=first term Thus, the missing expressions in the given statements (in order) are: $a_n=a_1+(n-1)(d$; $\text{first term}$; $\text{common difference}$
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