Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:20Z
∑_{k=1}^{n} k = n(n+1)/2
det| 12 5 ; 4 13 | = 136
\frac{12}{7} \sum_{i=1}^{n} i^{2}
90K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
91K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
137K
\frac{11}{6} \sum_{i=1}^{n} i^{2}
197K
det| 7 4 ; 4 8 | = 40
262K
CH₄ + 2O₂ → CO₂ + 2H₂O
196K
\oint_C \vec{F}\cdot d\vec{r} = 0
218K