Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 21:40Z
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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\oint_C \vec{F}\cdot d\vec{r} = 0
det| 5 9 ; 0 6 | = 30
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
CH₄ + 2O₂ → CO₂ + 2H₂O
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\lim_{α\to 0} \frac{\sin α}{α} = 1
\frac{10}{1} \sum_{i=1}^{n} i^{2}
det| 4 8 ; 3 5 | = -4
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