Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 00:27Z
2H₂ + O₂ → 2H₂O
det| 8 8 ; 7 9 | = 16
det| 4 6 ; 4 5 | = -4
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CH₄ + 2O₂ → CO₂ + 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 7 4 ; 4 8 | = 40
137K