Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 17:15Z
CH₄ + 2O₂ → CO₂ + 2H₂O
det| 8 5 ; 3 9 | = 57
52K
det| 3 1 ; 3 4 | = 9
AgNO₃ + NaCl → AgCl↓ + NaNO₃
90K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 7 4 ; 4 8 | = 40
100K
5β² + 1β + 1 = 0
\frac{12}{7} \sum_{i=1}^{n} i^{2}
137K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
197K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\oint_C \vec{F}\cdot d\vec{r} = 0
\frac{9}{1} \sum_{i=1}^{n} i^{2}
\oint_C \vec{F}\cdot d\vec{r} = 0
∇²θ = 0
ΔS ≥ 0