Math Dump /sym/6c3138
id=1 · host=fr.findroms.cloud · 2026-10-18 00:04Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
d/dx [x^7] = 7x^6
det| 7 2 ; 7 8 | = 42
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
\lim_{x\to 0} \frac{\sin x}{x} = 1
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det| 3 6 ; 0 4 | = 12
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\lim_{r\to 0} \frac{\sin r}{r} = 1
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det| 10 2 ; 3 11 | = 104
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∑_{k=1}^{n} k = n(n+1)/2
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