Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 17:11Z
CH₄ + 2O₂ → CO₂ + 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
52K
det| 3 1 ; 3 4 | = 9
det| 1 4 ; 2 2 | = -6
90K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 10 5 ; 4 11 | = 90
100K
det| 7 4 ; 4 8 | = 40
50K
5β² + 1β + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
137K
\binom{n}{k} = \frac{n!}{k!(n-k)!}