Formula Ledger /sym/7ab403
id=1 · host=findroms.cloud · 2026-10-20 03:58Z
det| 1 9 ; 3 2 | = -25
\binom{n}{k} = \frac{n!}{k!(n-k)!}
190K
∇ × E = −∂B/∂t
6t² + 6t + 7 = 0
\frac{1}{7} \sum_{i=1}^{n} i^{2}
170K
∑_{k=1}^{n} k = n(n+1)/2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
105K
∂β/∂n = 7β
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
138K
\oint_C \vec{F}\cdot d\vec{r} = 0
3n² + 4n + 2 = 0
2H₂ + O₂ → 2H₂O
N₂ + 3H₂ ⇌ 2NH₃