ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:11Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∇²ω = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
17K
det| 5 3 ; 2 6 | = 24
310K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
\lim_{t\to 0} \frac{\sin t}{t} = 1
311K
det| 7 4 ; 4 8 | = 40
68K
det| 8 4 ; 6 9 | = 48
39K
\frac{8}{6} \sum_{i=1}^{n} i^{2}
364K
∑_{k=1}^{n} k = n(n+1)/2
6K