Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:11Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\oint_C \vec{F}\cdot d\vec{r} = 0
46K
CaCO₃ → CaO + CO₂
e^{i\pi} + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
339K
∂x/∂r = 4x
det| 7 4 ; 4 8 | = 40
358K
det| 12 1 ; 5 13 | = 151
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 5 3 ; 7 6 | = 9
316K
det| 12 4 ; 4 13 | = 140
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
387K
∑_{k=1}^{n} k = n(n+1)/2
N₂ + 3H₂ ⇌ 2NH₃