Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 00:41Z
2H₂ + O₂ → 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
52K
det| 8 8 ; 7 9 | = 16
AgNO₃ + NaCl → AgCl↓ + NaNO₃
91K
CH₄ + 2O₂ → CO₂ + 2H₂O
\lim_{α\to 0} \frac{\sin α}{α} = 1
100K
∑_{k=1}^{n} k = n(n+1)/2
50K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{12}{7} \sum_{i=1}^{n} i^{2}
137K
det| 7 4 ; 4 8 | = 40
197K
det| 10 3 ; 0 11 | = 110
\frac{2}{2} \sum_{i=1}^{n} i^{2}
196K
9z² + 8z + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
218K
iħ ∂ψ/∂t = Ĥψ
CaCO₃ → CaO + CO₂