Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:06Z
4y² + 8y + 1 = 0
2H₂ + O₂ → 2H₂O
det| 6 7 ; 6 7 | = 0
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
177K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
358K
∑_{k=1}^{n} k = n(n+1)/2
121K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
316K
CH₄ + 2O₂ → CO₂ + 2H₂O
144K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
67K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
97K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
338K