Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 02:13Z
∂r/∂t = 7r
\lim_{y\to 0} \frac{\sin y}{y} = 1
\oint_C \vec{F}\cdot d\vec{r} = 0
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
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iħ ∂ψ/∂t = Ĥψ
det| 9 4 ; 1 10 | = 86
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det| 12 8 ; 0 13 | = 156
∑_{k=1}^{n} k = n(n+1)/2
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det| 12 4 ; 2 13 | = 148
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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F = G m₁m₂ / r²
λ = h/p
\lim_{r\to 0} \frac{\sin r}{r} = 1