Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 21:10Z
∂n/∂z = 1n
∑_{k=1}^{n} k = n(n+1)/2
244K
det| 12 1 ; 6 13 | = 150
det| 7 4 ; 4 8 | = 40
90K
det| 8 2 ; 7 9 | = 58
91K
CaCO₃ → CaO + CO₂
det| 11 9 ; 0 12 | = 132
137K
∑_{k=1}^{n} k = n(n+1)/2
197K