Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:27Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
46K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
468K
CaCO₃ → CaO + CO₂
det| 5 6 ; 2 6 | = 18
278K
e^{i\pi} + 1 = 0
det| 2 3 ; 5 3 | = -9
339K
∂x/∂r = 4x
\binom{n}{k} = \frac{n!}{k!(n-k)!}
358K
det| 7 8 ; 4 8 | = 24
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 7 4 ; 4 8 | = 40
399K
∑_{k=1}^{n} k = n(n+1)/2
387K