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(1 point) Evaluate each sum. You may use the following formulas: n E k = n(n + 1) K = 2 n E 12 _

(1 point) Evaluate each sum. You may use the following formulas: n E k = n(n + 1) K = 2 n E 12 _ n(n + 1)(2n + 1) O k=1 18 _ (4 - K2 ) = k=1 9k =

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