Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:19Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 8 9 ; 4 9 | = 36
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∑_{k=1}^{n} k = n(n+1)/2
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CaCO₃ → CaO + CO₂
e^{i\pi} + 1 = 0
det| 1 4 ; 3 2 | = -10
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det| 2 3 ; 5 3 | = -9
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∫₀^∞ e^(-t²) dt = √π / 2
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