Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 00:53Z
2H₂ + O₂ → 2H₂O
det| 8 8 ; 7 9 | = 16
AgNO₃ + NaCl → AgCl↓ + NaNO₃
91K
CH₄ + 2O₂ → CO₂ + 2H₂O
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
50K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
AgNO₃ + NaCl → AgCl↓ + NaNO₃
137K
∑_{k=1}^{n} k = n(n+1)/2
197K
det| 9 4 ; 1 10 | = 86
196K
det| 3 6 ; 0 4 | = 12
218K
\frac{2}{2} \sum_{i=1}^{n} i^{2}
299K