Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 15:47Z
\lim_{y\to 0} \frac{\sin y}{y} = 1
∫₀^∞ e^(-φ²) dφ = √π / 2
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∑_{k=1}^{n} k = n(n+1)/2
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AgNO₃ + NaCl → AgCl↓ + NaNO₃
det| 10 9 ; 0 11 | = 110
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det| 8 8 ; 0 9 | = 72
\lim_{α\to 0} \frac{\sin α}{α} = 1
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det| 9 4 ; 1 10 | = 86
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det| 10 7 ; 3 11 | = 89
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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∑_{k=1}^{n} k = n(n+1)/2
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∑_{k=1}^{n} k = n(n+1)/2
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det| 10 2 ; 1 11 | = 108
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