ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:07Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∇²ω = 0
\frac{6}{7} \sum_{i=1}^{n} i^{2}
91K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
311K
\lim_{α\to 0} \frac{\sin α}{α} = 1
264K
∫₀^∞ e^(-t²) dt = √π / 2
68K
det| 5 7 ; 2 6 | = 16
39K
det| 9 4 ; 1 10 | = 86
6K