Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 10 - Section 10.3 - Geoetric Sequences and Series - Exercise Set - Page 1074: 33



Work Step by Step

The general formula to find the nth partial sum of a Geometric sequence is given as: $ S_{n}=\dfrac{a(1-r^n)}{(1-r)}$ $ a_1=(5)(2)^{1}=10$ wen $ i=1$ Now, $ S_{10}=\dfrac{(10) \times [1-(2)^{10}]}{(1-2)}=10 \times (\dfrac{-1023}{-1})$ Our answer is: $ S_{10}=10230$
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