ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:49Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 9 5 ; 1 10 | = 85
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∇²ω = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 2 7 ; 7 3 | = -43
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det| 9 4 ; 1 10 | = 86
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∑_{k=1}^{n} k = n(n+1)/2
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