Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 18:21Z
det| 11 8 ; 0 12 | = 132
Fe₂O₃ + 3CO → 2Fe + 3CO₂
52K
N₂ + 3H₂ ⇌ 2NH₃
det| 7 4 ; 4 8 | = 40
90K
det| 8 2 ; 7 9 | = 58
91K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 7 7 ; 4 8 | = 28
100K
det| 5 3 ; 2 6 | = 24
137K
∑_{k=1}^{n} k = n(n+1)/2
197K