Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:13Z
4y² + 8y + 1 = 0
det| 4 5 ; 1 5 | = 15
46K
\frac{10}{5} \sum_{i=1}^{n} i^{2}
468K
2H₂ + O₂ → 2H₂O
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
289K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
AgNO₃ + NaCl → AgCl↓ + NaNO₃
11K
det| 9 1 ; 4 10 | = 86
387K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
67K
∑_{k=1}^{n} k = n(n+1)/2
97K
\frac{5}{4} \sum_{i=1}^{n} i^{2}
338K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
256K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
348K
det| 1 7 ; 7 2 | = -47
396K