Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 19:39Z
∂r/∂φ = 2r
det| 6 6 ; 3 7 | = 24
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e^{i\pi} + 1 = 0
det| 11 4 ; 5 12 | = 112
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det| 9 4 ; 1 10 | = 86
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
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∑_{k=1}^{n} k = n(n+1)/2
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det| 1 4 ; 3 2 | = -10
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