Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:21Z
4y² + 8y + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
46K
2H₂ + O₂ → 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
289K
∑_{k=1}^{n} k = n(n+1)/2
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
358K
det| 9 4 ; 1 10 | = 86
121K
det| 6 9 ; 4 7 | = 6
316K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
11K
det| 9 7 ; 1 10 | = 83
67K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
97K
\frac{12}{4} \sum_{i=1}^{n} i^{2}
338K
det| 7 3 ; 6 8 | = 38
396K