Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 00:59Z
2H₂ + O₂ → 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
52K
det| 8 8 ; 7 9 | = 16
∑_{k=1}^{n} k = n(n+1)/2
90K
∑_{k=1}^{n} k = n(n+1)/2
91K
CH₄ + 2O₂ → CO₂ + 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}