College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 9 - Section 9.2 - Arithmetic Sequences - 9.2 Assess Your Understanding - Page 654: 4

Answer

True.

Work Step by Step

The sum $S_{n}$ of the first $n$ terms of $\left\{a_{n}\right\}$ may be found in two ways: $S_{n}=\displaystyle \frac{n}{2}\left[2a_{1}+(n-1)d\right]$ $S_{n}=\displaystyle \frac{n}{2}\left(a_{1}+a_{n}\right)$ (theorem)
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