Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 00:29Z
2H₂ + O₂ → 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
244K
det| 5 6 ; 1 6 | = 24
52K
det| 8 8 ; 7 9 | = 16
det| 7 4 ; 4 8 | = 40
90K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
91K
CH₄ + 2O₂ → CO₂ + 2H₂O
\frac{12}{7} \sum_{i=1}^{n} i^{2}
100K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
137K
∑_{k=1}^{n} k = n(n+1)/2
197K
\frac{2}{2} \sum_{i=1}^{n} i^{2}
262K
CH₄ + 2O₂ → CO₂ + 2H₂O
196K