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1355 sats \ 3 replies \ @random_ 23 Sep \ on: (999^2 - 1)/998 charts_and_numbers
(n^2-1)/(n-1) =(n+1)(n-1)/(n-1) =(n+1)
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21 sats \ 0 replies \ @didiplaywell 23 Sep
Smart bitch!! Didn't thought of that!
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21 sats \ 0 replies \ @south_korea_ln OP 23 Sep
That's the way I used to solve it too...
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0 sats \ 0 replies \ @Bell_curve 23 Sep
sharp as a tack
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