Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-09-18 03:37Z
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
d/dψ [ψ^6] = 6ψ^5
det| 8 6 ; 5 9 | = 42
421K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
366K
6t² + 3t + 7 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
411K
\frac{2}{9} \sum_{i=1}^{n} i^{2}
78K
∑_{k=1}^{n} k = n(n+1)/2
163K