Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 19:57Z
\oint_C \vec{F}\cdot d\vec{r} = 0
∑_{k=1}^{n} k = n(n+1)/2
479K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 4 6 ; 4 5 | = -4
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det| 7 4 ; 4 8 | = 40
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6x² + 5x + 5 = 0
det| 5 6 ; 7 6 | = -12
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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ω = 2πf
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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9ω² + 6ω + 5 = 0