Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 21:39Z
∑_{k=1}^{n} k = n(n+1)/2
det| 7 2 ; 7 8 | = 42
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\oint_C \vec{F}\cdot d\vec{r} = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
\oint_C \vec{F}\cdot d\vec{r} = 0
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det| 10 7 ; 3 11 | = 89
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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\oint_C \vec{F}\cdot d\vec{r} = 0
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