Answer
$A_{n}=3\times(1/10)^{n-1}$
Work Step by Step
Each term is being multiplied by 1/10 and the first term is 3. Thus the nth term must be $A_{n}=3\times(1/10)^{n-1}$. 1/10 is the common ratio in this instance.
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 12 - Section 12.1 - Sequences and Summation Notation - 12.1 Exercises - Page 851: 34
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