Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-19 18:13Z
9n² + 9n + 6 = 0
∑_{k=1}^{n} k = n(n+1)/2
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| 2 4 ; 4 3 | = -10
240K
det| 2 7 ; 7 3 | = -43
139K
∫₀^∞ e^(-t²) dt = √π / 2
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∑_{k=1}^{n} k = n(n+1)/2
295K