Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 17:13Z
CH₄ + 2O₂ → CO₂ + 2H₂O
det| 3 1 ; 3 4 | = 9
\binom{n}{k} = \frac{n!}{k!(n-k)!}
90K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∑_{k=1}^{n} k = n(n+1)/2
100K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
50K
5β² + 1β + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{12}{6} \sum_{i=1}^{n} i^{2}
262K
\oint_C \vec{F}\cdot d\vec{r} = 0