ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:01Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∇²ω = 0
det| 9 5 ; 6 10 | = 60
91K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 5 9 ; 7 6 | = -33
68K
∑_{k=1}^{n} k = n(n+1)/2
39K