Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:23Z
4y² + 8y + 1 = 0
det| 7 4 ; 4 8 | = 40
468K
2H₂ + O₂ → 2H₂O
AgNO₃ + NaCl → AgCl↓ + NaNO₃
289K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
339K
det| 9 5 ; 2 10 | = 80
177K
det| 10 5 ; 6 11 | = 80
358K
∫₀^∞ e^(-x²) dx = √π / 2
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
387K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
144K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
67K
det| 9 2 ; 7 10 | = 76
256K
∑_{k=1}^{n} k = n(n+1)/2
348K