College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 8, Sequences and Series - Section 8.1 - Sequences and Summation Notation - 8.1 Exercises: 60

Answer

-0.688172

Work Step by Step

We evaluate using a calculator: $\sum_{n=1}^{100}\frac{(-1)^n}{n}=\frac{(-1)^1}{1}+\frac{(-1)^2}{2}+...+\frac{(-1)^{100}}{100}=-0.688172$
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