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‪#gmatclubApproach‬ For every even integer 2n from 1 to 8,

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‪#gmatclubApproach‬
For every even integer 2n from 1 to 8, inclusive, the nth term of a certain sequence is given by (−1)^n(1/2^n) . If S is the sum of such a sequence then S is
A. Between -1 and -1/2
B. Between -1/2 and 0
C. Between 0 and 1/4
D. Between 1/4 and 3/4
E. Between 3/4 and 5/2

1 Answer

RacDevore
0
Even integers between 1-8 are 2 4 6 8
N will be 1 2 3 4
S -1/2 + 1/4 +1/8 + 1/16
answered Jun 14, 2016 by Beginner (1 point)
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