Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:49Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
468K
CaCO₃ → CaO + CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
278K
e^{i\pi} + 1 = 0
det| 11 9 ; 0 12 | = 132
339K
det| 10 7 ; 3 11 | = 89
177K
∂x/∂r = 4x
CH₄ + 2O₂ → CO₂ + 2H₂O
358K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 12 4 ; 4 13 | = 140
det| 7 4 ; 4 8 | = 40
11K
det| 12 9 ; 5 13 | = 111
387K
∑_{k=1}^{n} k = n(n+1)/2