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 - Concept and Vocabulary Check: 2

Answer

$a_1 \cdot r^{n-1}$; $\text{first term}$; $\text{common ratio}$

Work Step by Step

RECALL: The $n^{th}$ term ($a_n$) of a geometric sequence can be found using the formula $a_n=a^1 \cdot r^{n-1}$ where r = common ratio $a_1$ = first term Thus, the missing expressions in the given statements are $\underline{a_1 \cdot r^{n-1}}$; $\underline{\text{first term}}$; and $\underline{\text{common ratio}}$, respectively.
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