Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-18 23:29Z
\oint_C \vec{F}\cdot d\vec{r} = 0
∫₀^∞ e^(-z²) dz = √π / 2
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∫₀^∞ e^(-r²) dr = √π / 2
det| 7 4 ; 4 8 | = 40
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7z² + 5z + 1 = 0
∫₀^∞ e^(-θ²) dθ = √π / 2
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∑_{k=1}^{n} k = n(n+1)/2
∑_{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
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det| 5 6 ; 4 6 | = 6
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\frac{8}{6} \sum_{i=1}^{n} i^{2}
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