Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 15:52Z
\lim_{y\to 0} \frac{\sin y}{y} = 1
∫₀^∞ e^(-x²) dx = √π / 2
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∑_{k=1}^{n} k = n(n+1)/2
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AgNO₃ + NaCl → AgCl↓ + NaNO₃
det| 8 8 ; 0 9 | = 72
det| 5 3 ; 7 6 | = 9
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\frac{2}{2} \sum_{i=1}^{n} i^{2}
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det| 4 4 ; 5 5 | = 0
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det| 9 4 ; 1 10 | = 86
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\oint_C \vec{F}\cdot d\vec{r} = 0
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