Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:07Z
4y² + 8y + 1 = 0
det| 4 8 ; 6 5 | = -28
468K
2H₂ + O₂ → 2H₂O
det| 2 6 ; 1 3 | = 0
289K
∑_{k=1}^{n} k = n(n+1)/2
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
det| 8 4 ; 3 9 | = 60
339K
det| 3 7 ; 3 4 | = -9
177K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
399K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
316K
\lim_{x\to 0} \frac{\sin x}{x} = 1
11K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
387K
\frac{5}{8} \sum_{i=1}^{n} i^{2}
67K
det| 3 5 ; 4 4 | = -8
338K