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Determine Whether the Series Converges or Diverges n=1(1)nn2n\sum _ { n = 1 } ^ { \infty } \frac { ( - 1 ) ^ { n } n } { 2 ^ { n } }

Question 115

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Determine whether the series converges or diverges.
n=1(1)nn2n\sum _ { n = 1 } ^ { \infty } \frac { ( - 1 ) ^ { n } n } { 2 ^ { n } }

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