Σ index Rxn set 8 Ledger /9 Matrix 23 Batch 16 Batch 22 Σ#12 Ledger /15 Eq pack 1 Ledger /21

Spectra Ledger /sym/2e6562

id=1 · host=commstar.world · 2026-10-18 22:25Z

det| 5 7 ; 7 6 | = -19

∑_{k=1}^{n} k = n(n+1)/2

40K

d/dn [n^6] = 6n^5

297K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

d/dt [t^3] = 3t^2

138K

F = G m₁m₂ / r²

138K

6n² + 8n + 4 = 0

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

176K

det| 9 4 ; 1 10 | = 86

67K

∑_{k=1}^{n} k = n(n+1)/2

306K

∑_{k=1}^{n} k = n(n+1)/2

322K

det| 2 4 ; 4 3 | = -10

374K