Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 17:40Z
∑_{k=1}^{n} k = n(n+1)/2
det| 5 6 ; 7 6 | = -12
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8β² + 2β + 0 = 0
det| 4 6 ; 4 5 | = -4
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∑_{k=1}^{n} k = n(n+1)/2
det| 9 4 ; 1 10 | = 86
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\lim_{r\to 0} \frac{\sin r}{r} = 1
det| 10 4 ; 1 11 | = 106
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