Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-19 18:06Z
9n² + 9n + 6 = 0
det| 5 9 ; 7 6 | = -33
269K
∑_{k=1}^{n} k = n(n+1)/2
det| 7 4 ; 4 8 | = 40
131K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 11 9 ; 0 12 | = 132
139K
∑_{k=1}^{n} k = n(n+1)/2
344K
det| 3 6 ; 0 4 | = 12
91K