Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-20 19:12Z
AgNO₃ + NaCl → AgCl↓ + NaNO₃
\lim_{x\to 0} \frac{\sin x}{x} = 1
∫₀^∞ e^(-α²) dα = √π / 2
∑_{k=1}^{n} k = n(n+1)/2
212K
det| 7 4 ; 4 8 | = 40
362K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 10 5 ; 4 11 | = 90
179K
det| 12 9 ; 5 13 | = 111
405K
det| 7 4 ; 1 8 | = 52
λ = h/p
∑_{k=1}^{n} k = n(n+1)/2
41K
∂r/∂φ = 4r