Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 02:27Z
det| 2 2 ; 6 3 | = -6
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 3 1 ; 4 4 | = 8
det| 9 4 ; 1 10 | = 86
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det| 5 6 ; 7 6 | = -12
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∫₀^∞ e^(-t²) dt = √π / 2
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∑_{k=1}^{n} k = n(n+1)/2
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