Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 21:14Z
AgNO₃ + NaCl → AgCl↓ + NaNO₃
∑_{k=1}^{n} k = n(n+1)/2
144K
det| 4 7 ; 0 5 | = 20
Fe₂O₃ + 3CO → 2Fe + 3CO₂
90K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
438K
∑_{k=1}^{n} k = n(n+1)/2
\frac{4}{6} \sum_{i=1}^{n} i^{2}
394K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 7 3 ; 6 8 | = 38
94K