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Please help with the following questions: Problem 11. Let {un} and {Un} be two sequences defined by 2n - 4n + 3 2 + 4n

Please help with the following questions:

Problem 11. Let {un} and {Un} be two sequences defined by 2n - 4n + 3 2" + 4n -3 Un = and Un = for any n E N. 2 2 Determine the nth partial sum of the sequence {Wn}, where Wn = Un - Un, for every n E N

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