Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 17:33Z
\frac{12}{7} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
479K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
8K
CH₄ + 2O₂ → CO₂ + 2H₂O
det| 7 4 ; 4 8 | = 40
102K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 7 7 ; 4 8 | = 28
264K
det| 1 2 ; 7 2 | = -12
257K
∑_{k=1}^{n} k = n(n+1)/2
250K
det| 3 6 ; 0 4 | = 12
62K