ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:46Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 11 2 ; 5 12 | = 122
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det| 5 3 ; 7 6 | = 9
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∇²ω = 0
∑_{k=1}^{n} k = n(n+1)/2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
\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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\frac{6}{3} \sum_{i=1}^{n} i^{2}
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2H₂ + O₂ → 2H₂O
10r² + 7r + 5 = 0