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Find the sum of the series. n = 2 to infinity 2n(n-1)x^(n+1) |x| < 1

Find the sum of the series. n = 2 to infinity 2n(n-1)x^(n+1) |x| < 1

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Find the sum of the series. n = 2 to infinity 2n(n-1)x^(n+1) |x| < 1

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