Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-20 19:09Z
AgNO₃ + NaCl → AgCl↓ + NaNO₃
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
445K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
193K
\lim_{x\to 0} \frac{\sin x}{x} = 1
∑_{k=1}^{n} k = n(n+1)/2
322K
∫₀^∞ e^(-α²) dα = √π / 2
∫₀^∞ e^(-n²) dn = √π / 2
212K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{12}{7} \sum_{i=1}^{n} i^{2}
179K
det| 7 4 ; 1 8 | = 52
∫₀^∞ e^(-φ²) dφ = √π / 2
442K
λ = h/p
\binom{n}{k} = \frac{n!}{k!(n-k)!}
41K
det| 9 4 ; 1 10 | = 86
369K
det| 8 4 ; 1 9 | = 68
7x² + 9x + 3 = 0