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Sum of squares formula, explained only using algebra
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You probably learned 1^2 + 2^2 + ... +n^2= n(n+1)(2n+1)/6
But how did anyone come up with this formula?
In this video, I'll try to explain how it can be derived, only using algebra.
But how did anyone come up with this formula?
In this video, I'll try to explain how it can be derived, only using algebra.
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