Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 05:12Z
det| 3 3 ; 5 4 | = -3
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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∇²β = 0
det| 6 6 ; 3 7 | = 24
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\oint_C \vec{F}\cdot d\vec{r} = 0
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e^{i\pi} + 1 = 0
\lim_{t\to 0} \frac{\sin t}{t} = 1
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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E = mc²
det| 12 1 ; 4 13 | = 152
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AgNO₃ + NaCl → AgCl↓ + NaNO₃
∑_{k=1}^{n} k = n(n+1)/2
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