02 Feb 20copy & paste+upvote-downvoteHere's a visual proof that (2a+1)Β²=8Tβ+1, where Tβ is a triangle number Tβ = 1+2+...+a
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β«οΈβ«οΈπ΄π΄π΄β«οΈβ«οΈβ¦ https://t.co/PUE1xIglft
β@_lexiemichelee: @MariaCabayubi you know how slow I am Maria. But it looks really goodβhah I know this. But thank youuu
14 Jan 13copy & paste+upvote-downvoteβ@_lexiemichelee: @MariaCabayubi you know how slow I am Maria. But it looks really goodππππβhah I know this. But thank youuu βΊπππ