Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 06:16Z
det| 8 1 ; 6 9 | = 66
∑_{k=1}^{n} k = n(n+1)/2
244K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
52K
∑_{k=1}^{n} k = n(n+1)/2
det| 11 5 ; 0 12 | = 132
91K
1n² + 9n + 0 = 0
det| 4 6 ; 4 5 | = -4
100K
det| 9 4 ; 1 10 | = 86
50K
det| 11 9 ; 0 12 | = 132
137K
∑_{k=1}^{n} k = n(n+1)/2
197K