Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 03:50Z
∇ × E = −∂B/∂t
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 5 6 ; 2 6 | = 18
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∂x/∂n = 6x
Fe₂O₃ + 3CO → 2Fe + 3CO₂
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\lim_{x\to 0} \frac{\sin x}{x} = 1
det| 2 8 ; 7 3 | = -50
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\binom{n}{k} = \frac{n!}{k!(n-k)!}