Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:49Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
46K
det| 10 3 ; 4 11 | = 98
468K
CaCO₃ → CaO + CO₂
det| 7 4 ; 4 8 | = 40
278K
e^{i\pi} + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
339K
det| 12 1 ; 5 13 | = 151
177K
∂x/∂r = 4x
∑_{k=1}^{n} k = n(n+1)/2
358K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 3 6 ; 0 4 | = 12
316K
det| 12 4 ; 4 13 | = 140
det| 4 8 ; 3 5 | = -4
387K
∑_{k=1}^{n} k = n(n+1)/2