Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 18:03Z
det| 11 8 ; 0 12 | = 132
det| 7 4 ; 4 8 | = 40
244K
N₂ + 3H₂ ⇌ 2NH₃
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
91K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∫₀^∞ e^(-φ²) dφ = √π / 2
100K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
50K
CH₄ + 2O₂ → CO₂ + 2H₂O
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
137K
2H₂ + O₂ → 2H₂O
\lim_{α\to 0} \frac{\sin α}{α} = 1
196K
∑_{k=1}^{n} k = n(n+1)/2
299K