Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 17:20Z
∑_{k=1}^{n} k = n(n+1)/2
det| 5 3 ; 7 6 | = 9
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8β² + 2β + 0 = 0
det| 10 2 ; 1 11 | = 108
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∑_{k=1}^{n} k = n(n+1)/2
∫₀^∞ e^(-t²) dt = √π / 2
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\lim_{r\to 0} \frac{\sin r}{r} = 1
det| 12 1 ; 1 13 | = 155
det| 7 4 ; 4 8 | = 40
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det| 4 4 ; 5 5 | = 0
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