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25-05-2023
Mathematics

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A.11. It can be proved that the sum of squares of the first n positive numbers is: η n(n + 1)(2n + 1) Σκ 6 Using this formula, obtain 10 20 10 a. Σκ b. Σκ d. Σ4k2 · k=10 = 19 c. Σκ k=11

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