Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 21:18Z
AgNO₃ + NaCl → AgCl↓ + NaNO₃
det| 4 7 ; 0 5 | = 20
det| 4 6 ; 0 5 | = 20
90K
∑_{k=1}^{n} k = n(n+1)/2
438K
∑_{k=1}^{n} k = n(n+1)/2
det| 7 1 ; 7 8 | = 49
29K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{2}{2} \sum_{i=1}^{n} i^{2}
211K
\frac{12}{7} \sum_{i=1}^{n} i^{2}
390K