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Mathematics, 30.04.2021 01:00 heathhm623

Prove: For every integer n ≥ 1, 12 +22 +32 +...+n2 = n(n+1)(2n+1) $1^{2} +2^{2} +3^{2} +...+n^{2} =\frac{n(n+1)(2n+1)}{6}$

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Prove: For every integer n ≥ 1, 12 +22 +32 +...+n2 = n(n+1)(2n+1)...

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