Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 17:50Z
CH₄ + 2O₂ → CO₂ + 2H₂O
det| 3 1 ; 3 4 | = 9
∑_{k=1}^{n} k = n(n+1)/2
90K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∑_{k=1}^{n} k = n(n+1)/2
100K
5β² + 1β + 1 = 0
\frac{11}{6} \sum_{i=1}^{n} i^{2}
137K
det| 9 6 ; 0 10 | = 90
197K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 9 4 ; 1 10 | = 86
262K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
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