Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:54Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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CaCO₃ → CaO + CO₂
det| 2 8 ; 7 3 | = -50
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e^{i\pi} + 1 = 0
det| 12 6 ; 0 13 | = 156
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∑_{k=1}^{n} k = n(n+1)/2
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∂x/∂r = 4x
∑_{k=1}^{n} k = n(n+1)/2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\oint_C \vec{F}\cdot d\vec{r} = 0
316K
det| 9 4 ; 1 10 | = 86
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\frac{2}{2} \sum_{i=1}^{n} i^{2}
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