Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 17:28Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
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iħ ∂ψ/∂t = Ĥψ
det| 7 4 ; 4 8 | = 40
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det| 5 3 ; 7 6 | = 9
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3r² + 6r + 7 = 0
E = mc²
∫₀^∞ e^(-x²) dx = √π / 2
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CH₄ + 2O₂ → CO₂ + 2H₂O
det| 3 6 ; 1 4 | = 6