Answer
False
Work Step by Step
$\sum_{i=1}^{2}(-1)^i2^i=(-1)^12^1+(-1)^22^2$
or, $=-2+4$
$=2$
Hence, the given statement is false.
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 11 - Section 11.1 - Sequences and Summation Notation - Exercise Set - Page 831: 77
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