Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 21:56Z
∂n/∂z = 1n
det| 9 4 ; 1 10 | = 86
52K
det| 12 1 ; 6 13 | = 150
Fe₂O₃ + 3CO → 2Fe + 3CO₂
90K
∑_{k=1}^{n} k = n(n+1)/2
91K
CaCO₃ → CaO + CO₂
∑_{k=1}^{n} k = n(n+1)/2
100K
det| 10 5 ; 4 11 | = 90
137K