Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 11 - Sequences; Induction; the Binomial Theorem - Section 11.3 Geometric Sequences; Geometric Series - 11.3 Assess Your Understanding - Page 845: 79

Answer

$\frac{2^{50}-1}{3}$

Work Step by Step

Based on the given numbers, we can identify $r=-2$ and it is a geometric series. $S_{50}=\frac{-1((-2)^{50}-1)}{-2-1}=\frac{2^{50}-1}{3}$
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