Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-19 18:12Z
9n² + 9n + 6 = 0
det| 4 6 ; 0 5 | = 20
269K
∑_{k=1}^{n} k = n(n+1)/2
det| 9 4 ; 1 10 | = 86
158K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
240K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
139K