The sum of the first 𝑛 odd numbers is always a perfect squarepic.twitter.com/AFox3MczUB
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It feels like there's a pair of brackets missing.
the brackets don't matter in either case since summation is distributive
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Well, it does matter whether it's Σ(2k - 1) or (Σ 2k) - 1, the latter can never be a perfect square since it's uneven.
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oh i thought you were concerned about the sum hitting both or something .. yea .. i mean .. it is what it is
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