Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 11 - Section 11.3 - Series - Exercise Set: 16

Answer

$40$

Work Step by Step

We sum from i = low bound to i = high bound. $3^{1-1} + 3^{2-1} + 3^{3-1} + 3^{4-1} = 3^0 + 3^1 + 3^2 + 3^3 = 1 + 3 + 9 + 27 = 40$
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