ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:07Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
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∇²ω = 0
det| 11 5 ; 0 12 | = 132
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
\lim_{ψ\to 0} \frac{\sin ψ}{ψ} = 1
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
2H₂ + O₂ → 2H₂O
CH₄ + 2O₂ → CO₂ + 2H₂O
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10r² + 7r + 5 = 0