Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 17:22Z
∑_{k=1}^{n} k = n(n+1)/2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
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\oint_C \vec{F}\cdot d\vec{r} = 0
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8β² + 2β + 0 = 0
det| 7 6 ; 1 8 | = 50
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\oint_C \vec{F}\cdot d\vec{r} = 0
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∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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det| 4 8 ; 3 5 | = -4
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\lim_{r\to 0} \frac{\sin r}{r} = 1
det| 9 4 ; 1 10 | = 86
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det| 12 1 ; 1 13 | = 155
N₂ + 3H₂ ⇌ 2NH₃
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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det| 7 2 ; 3 8 | = 50
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det| 5 5 ; 2 6 | = 20
e^{i\pi} + 1 = 0