Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 21:37Z
det| 12 9 ; 4 13 | = 120
∑_{k=1}^{n} k = n(n+1)/2
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∑_{k=1}^{n} k = n(n+1)/2
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∂α/∂n = 1α
∑_{k=1}^{n} k = n(n+1)/2
155K
det| 9 4 ; 1 10 | = 86
63K
det| 7 9 ; 3 8 | = 29
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 3 6 ; 0 4 | = 12
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