Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:20Z
d/dn [n^4] = 4n^3
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
∫₀^∞ e^(-r²) dr = √π / 2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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iħ ∂ψ/∂t = Ĥψ
det| 2 8 ; 7 3 | = -50
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\frac{2}{4} \sum_{i=1}^{n} i^{2}
\oint_C \vec{F}\cdot d\vec{r} = 0
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det| 5 7 ; 5 6 | = -5
AgNO₃ + NaCl → AgCl↓ + NaNO₃
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det| 7 4 ; 4 8 | = 40
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