Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 05:00Z
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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11y² + 4y + 3 = 0
d/dy [y^6] = 6y^5
det| 7 4 ; 4 8 | = 40
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∑_{k=1}^{n} k = n(n+1)/2
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8ω² + 6ω + 2 = 0
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
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\frac{2}{2} \sum_{i=1}^{n} i^{2}
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\frac{4}{2} \sum_{i=1}^{n} i^{2}
\oint_C \vec{F}\cdot d\vec{r} = 0
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λ = h/p
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O