Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 17:25Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
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iħ ∂ψ/∂t = Ĥψ
CH₄ + 2O₂ → CO₂ + 2H₂O
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det| 1 4 ; 3 2 | = -10
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3r² + 6r + 7 = 0
det| 9 4 ; 1 10 | = 86
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∑_{k=1}^{n} k = n(n+1)/2
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E = mc²
CH₄ + 2O₂ → CO₂ + 2H₂O
det| 3 6 ; 1 4 | = 6
det| 8 5 ; 0 9 | = 72