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 11.1 - Sequences and Summation Notation - Exercise Set: 3

Answer

$a_1=3 \\a_2=9 \\a_3 = 27 \\a_4 = 81$

Work Step by Step

To find the first four terms of the given sequence, substitute 1, 2, 3, and 4 to $n$, respectively, then simplify. $a_1 = 3^1 = 3 \\a_2 = 3^2 = 3(3) = 9 \\a_3 = 3^3 = 3(3)(3) = 27 \\a_4 = 3^4 = 3(3)(3)(3) = 81$
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