Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 19:36Z
∂r/∂φ = 2r
∑_{k=1}^{n} k = n(n+1)/2
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det| 7 4 ; 4 8 | = 40
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e^{i\pi} + 1 = 0
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 4 6 ; 4 5 | = -4
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\oint_C \vec{F}\cdot d\vec{r} = 0
det| 5 6 ; 2 6 | = 18
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det| 11 5 ; 0 12 | = 132
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