Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 06:25Z
det| 8 1 ; 6 9 | = 66
det| 7 4 ; 4 8 | = 40
244K
∑_{k=1}^{n} k = n(n+1)/2
52K
∑_{k=1}^{n} k = n(n+1)/2
1n² + 9n + 0 = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
137K
det| 7 7 ; 4 8 | = 28
197K