Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:07Z
4y² + 8y + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
468K
2H₂ + O₂ → 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
289K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
det| 1 5 ; 1 2 | = -3
339K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
177K
iħ ∂ψ/∂t = Ĥψ
CaCO₃ → CaO + CO₂
det| 3 9 ; 1 4 | = 3
316K
det| 9 8 ; 1 10 | = 82
CH₄ + 2O₂ → CO₂ + 2H₂O
11K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
67K
det| 9 7 ; 3 10 | = 69
276K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
346K