Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:11Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
468K
CaCO₃ → CaO + CO₂
∑_{k=1}^{n} k = n(n+1)/2
289K
∑_{k=1}^{n} k = n(n+1)/2
278K
e^{i\pi} + 1 = 0
det| 12 6 ; 0 13 | = 156
339K
det| 4 2 ; 6 5 | = 8
177K
∂x/∂r = 4x
det| 5 3 ; 7 6 | = 9
121K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 7 4 ; 4 8 | = 40
399K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
316K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
387K