Math Dump /sym/6c3138
id=1 · host=fr.findroms.cloud · 2026-10-26 23:43Z
\frac{2}{5} \sum_{i=1}^{n} i^{2}
det| 9 4 ; 1 10 | = 86
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∇²β = 0
det| 3 6 ; 0 4 | = 12
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det| 3 7 ; 2 4 | = -2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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∑_{k=1}^{n} k = n(n+1)/2
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AgNO₃ + NaCl → AgCl↓ + NaNO₃
∑_{k=1}^{n} k = n(n+1)/2
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