Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:08Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
46K
CaCO₃ → CaO + CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
289K
det| 9 6 ; 7 10 | = 48
278K
e^{i\pi} + 1 = 0
∫₀^∞ e^(-t²) dt = √π / 2
177K
∂x/∂r = 4x
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\oint_C \vec{F}\cdot d\vec{r} = 0
399K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
316K
det| 12 4 ; 4 13 | = 140
det| 7 9 ; 1 8 | = 47
11K
det| 9 4 ; 1 10 | = 86
387K