Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 02:00Z
PV = nRT
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
52K
det| 7 2 ; 2 8 | = 52
det| 7 4 ; 4 8 | = 40
91K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
∫₀^∞ e^(-x²) dx = √π / 2
50K
\oint_C \vec{F}\cdot d\vec{r} = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
137K
CH₄ + 2O₂ → CO₂ + 2H₂O
197K
\frac{2}{2} \sum_{i=1}^{n} i^{2}
196K
∑_{k=1}^{n} k = n(n+1)/2
218K