Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 19:39Z
∂r/∂φ = 2r
e^{i\pi} + 1 = 0
det| 5 3 ; 7 6 | = 9
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
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det| 7 4 ; 4 8 | = 40
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\oint_C \vec{F}\cdot d\vec{r} = 0
∫₀^∞ e^(-φ²) dφ = √π / 2
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