Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 17:34Z
CH₄ + 2O₂ → CO₂ + 2H₂O
AgNO₃ + NaCl → AgCl↓ + NaNO₃
244K
det| 3 1 ; 3 4 | = 9
\binom{n}{k} = \frac{n!}{k!(n-k)!}
91K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∑_{k=1}^{n} k = n(n+1)/2
100K
5β² + 1β + 1 = 0
CH₄ + 2O₂ → CO₂ + 2H₂O
137K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 9 4 ; 1 10 | = 86
262K
det| 5 6 ; 4 6 | = 6
196K
\frac{9}{1} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
218K
\oint_C \vec{F}\cdot d\vec{r} = 0