Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:25Z
d/dn [n^4] = 4n^3
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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det| 7 6 ; 1 8 | = 50
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\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
Fe₂O₃ + 3CO → 2Fe + 3CO₂
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\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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iħ ∂ψ/∂t = Ĥψ
det| 5 9 ; 7 6 | = -33
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∑_{k=1}^{n} k = n(n+1)/2
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\frac{2}{4} \sum_{i=1}^{n} i^{2}
det| 7 4 ; 4 8 | = 40
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