Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 15:57Z
\frac{7}{8} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
8K
CaCO₃ → CaO + CO₂
\frac{3}{5} \sum_{i=1}^{n} i^{2}
det| 2 4 ; 4 3 | = -10
264K
\frac{2}{2} \sum_{i=1}^{n} i^{2}
276K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 7 4 ; 4 8 | = 40
257K
det| 2 6 ; 0 3 | = 6
250K
∑_{k=1}^{n} k = n(n+1)/2