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34 Use summation formulas to evaluate the sum: 2 (- k2+ 20k-8). k =1 34 O E(-K2+20k-8) =25577 K =1 34 O E(-K2+20k-8) = -2057

34 Use summation formulas to evaluate the sum: 2 (- k2+ 20k-8). k =1 34 O E(-K2+20k-8) =25577 K =1 34 O E(-K2+20k-8) = -2057 K =1 34 O E(-K2+20k-8) =25313 K = 1 34 O E(-K2+ 20k-8)= - 1793 K = 1

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