Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 18:23Z
det| 11 8 ; 0 12 | = 132
\frac{12}{6} \sum_{i=1}^{n} i^{2}
244K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
52K
N₂ + 3H₂ ⇌ 2NH₃
\frac{12}{7} \sum_{i=1}^{n} i^{2}
90K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
CH₄ + 2O₂ → CO₂ + 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
137K
det| 9 4 ; 1 10 | = 86
262K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
196K
∑_{k=1}^{n} k = n(n+1)/2
218K