Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:33Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 7 4 ; 4 8 | = 40
468K
CaCO₃ → CaO + CO₂
e^{i\pi} + 1 = 0
det| 3 6 ; 0 4 | = 12
339K
\frac{2}{2} \sum_{i=1}^{n} i^{2}
177K
∂x/∂r = 4x
\binom{n}{k} = \frac{n!}{k!(n-k)!}
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\frac{3}{2} \sum_{i=1}^{n} i^{2}
316K
det| 12 4 ; 4 13 | = 140
det| 12 1 ; 5 13 | = 151
11K
\frac{4}{5} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
N₂ + 3H₂ ⇌ 2NH₃