Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 21:39Z
∑_{k=1}^{n} k = n(n+1)/2
det| 3 6 ; 0 4 | = 12
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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
det| 7 4 ; 4 8 | = 40
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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\lim_{α\to 0} \frac{\sin α}{α} = 1
\frac{10}{1} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
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det| 6 6 ; 3 7 | = 24
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F = G m₁m₂ / r²
∑_{k=1}^{n} k = n(n+1)/2
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