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 - Concept and Vocabulary Check: 4

Answer

$a_1=-\dfrac{1}{3}$

Work Step by Step

To find the first term of the give sequence. substitute $1$ to $n$ to obtain: $a_{1} = 5(1)-6 \\a_1=\dfrac{(-1)^1}{4^1-1} \\a_1 =\dfrac{-1}{4-1} \\a_1=\dfrac{-1}{3} \\a_1=-\dfrac{1}{3}$
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