Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-20 19:25Z
AgNO₃ + NaCl → AgCl↓ + NaNO₃
\binom{n}{k} = \frac{n!}{k!(n-k)!}
445K
\lim_{x\to 0} \frac{\sin x}{x} = 1
∫₀^∞ e^(-α²) dα = √π / 2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
212K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\oint_C \vec{F}\cdot d\vec{r} = 0
179K
det| 7 4 ; 1 8 | = 52
det| 3 3 ; 4 4 | = 0
442K
det| 9 4 ; 1 10 | = 86
42K
∑_{k=1}^{n} k = n(n+1)/2
369K