Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 21:24Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
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\oint_C \vec{F}\cdot d\vec{r} = 0
det| 5 9 ; 7 6 | = -33
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
\lim_{α\to 0} \frac{\sin α}{α} = 1
\lim_{α\to 0} \frac{\sin α}{α} = 1
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