Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-18 22:14Z
det| 5 7 ; 7 6 | = -19
\binom{n}{k} = \frac{n!}{k!(n-k)!}
40K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
297K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
138K
6n² + 8n + 4 = 0
∫₀^∞ e^(-φ²) dφ = √π / 2
67K
∇²φ = 0
\frac{11}{6} \sum_{i=1}^{n} i^{2}
306K
det| 1 5 ; 1 2 | = -3
322K
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
374K
∑_{k=1}^{n} k = n(n+1)/2
112K
5y² + 8y + 1 = 0
det| 7 4 ; 4 8 | = 40
247K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
417K
ΔS ≥ 0