Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 17:18Z
CH₄ + 2O₂ → CO₂ + 2H₂O
det| 4 6 ; 4 5 | = -4
52K
det| 3 1 ; 3 4 | = 9
\lim_{t\to 0} \frac{\sin t}{t} = 1
90K
∑_{k=1}^{n} k = n(n+1)/2
91K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
50K
5β² + 1β + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
137K
det| 7 4 ; 4 8 | = 40
197K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
196K
\frac{9}{1} \sum_{i=1}^{n} i^{2}