Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 21:09Z
∂n/∂z = 1n
det| 9 9 ; 5 10 | = 45
52K
det| 12 1 ; 6 13 | = 150
det| 4 6 ; 4 5 | = -4
90K
det| 9 4 ; 1 10 | = 86
91K
CaCO₃ → CaO + CO₂
det| 5 3 ; 2 6 | = 24
50K
∑_{k=1}^{n} k = n(n+1)/2
137K