Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 17:52Z
CH₄ + 2O₂ → CO₂ + 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
52K
det| 3 1 ; 3 4 | = 9
det| 7 4 ; 4 8 | = 40
91K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 11 9 ; 5 12 | = 87
100K
∑_{k=1}^{n} k = n(n+1)/2
50K
5β² + 1β + 1 = 0
\oint_C \vec{F}\cdot d\vec{r} = 0
137K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{9}{1} \sum_{i=1}^{n} i^{2}
∇²θ = 0
ΔS ≥ 0