Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 23:42Z
11t² + 7t + 4 = 0
det| 7 4 ; 4 8 | = 40
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E = mc²
Fe₂O₃ + 3CO → 2Fe + 3CO₂
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 10 4 ; 1 11 | = 106
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∑_{k=1}^{n} k = n(n+1)/2
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det| 4 8 ; 3 5 | = -4
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