Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 21:25Z
det| 12 9 ; 4 13 | = 120
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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∂α/∂n = 1α
det| 11 4 ; 5 12 | = 112
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det| 7 9 ; 3 8 | = 29
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 8 9 ; 4 9 | = 36
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\oint_C \vec{F}\cdot d\vec{r} = 0
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det| 9 4 ; 1 10 | = 86
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det| 7 2 ; 1 8 | = 54
∑_{k=1}^{n} k = n(n+1)/2
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