Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:02Z
4y² + 8y + 1 = 0
\oint_C \vec{F}\cdot d\vec{r} = 0
468K
2H₂ + O₂ → 2H₂O
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
289K
∑_{k=1}^{n} k = n(n+1)/2
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
det| 12 9 ; 5 13 | = 111
339K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
177K
\frac{4}{6} \sum_{i=1}^{n} i^{2}
121K
det| 9 5 ; 1 10 | = 85
399K
det| 9 4 ; 1 10 | = 86
316K
∑_{k=1}^{n} k = n(n+1)/2
387K