ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:04Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\lim_{y\to 0} \frac{\sin y}{y} = 1
312K
∇²ω = 0
∫₀^∞ e^(-θ²) dθ = √π / 2
91K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
310K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 1 4 ; 2 2 | = -6
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2H₂ + O₂ → 2H₂O
det| 7 4 ; 4 8 | = 40
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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