Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 15:59Z
\frac{7}{8} \sum_{i=1}^{n} i^{2}
CaCO₃ → CaO + CO₂
∑_{k=1}^{n} k = n(n+1)/2
57K
\frac{3}{5} \sum_{i=1}^{n} i^{2}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 7 4 ; 4 8 | = 40
257K
det| 3 3 ; 4 4 | = 0
250K
∑_{k=1}^{n} k = n(n+1)/2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
62K
\oint_C \vec{F}\cdot d\vec{r} = 0
256K
∇²θ = 0