Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 21:21Z
AgNO₃ + NaCl → AgCl↓ + NaNO₃
Fe₂O₃ + 3CO → 2Fe + 3CO₂
144K
det| 4 7 ; 0 5 | = 20
det| 7 4 ; 4 8 | = 40
438K
∑_{k=1}^{n} k = n(n+1)/2
det| 7 3 ; 6 8 | = 38
394K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
CH₄ + 2O₂ → CO₂ + 2H₂O
211K
det| 12 4 ; 3 13 | = 144
\binom{n}{k} = \frac{n!}{k!(n-k)!}
390K
\frac{8}{9} \sum_{i=1}^{n} i^{2}