Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 00:05Z
2H₂ + O₂ → 2H₂O
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
244K
∑_{k=1}^{n} k = n(n+1)/2
52K
det| 8 8 ; 7 9 | = 16
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
90K
\frac{11}{6} \sum_{i=1}^{n} i^{2}
91K
CH₄ + 2O₂ → CO₂ + 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
50K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
197K
det| 10 3 ; 0 11 | = 110
AgNO₃ + NaCl → AgCl↓ + NaNO₃
262K
det| 9 4 ; 1 10 | = 86
196K
9z² + 8z + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
218K
det| 1 8 ; 1 2 | = -6