Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 17:53Z
CH₄ + 2O₂ → CO₂ + 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
244K
∑_{k=1}^{n} k = n(n+1)/2
52K
det| 3 1 ; 3 4 | = 9
det| 7 7 ; 4 8 | = 28
90K
det| 3 6 ; 0 4 | = 12
91K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
5β² + 1β + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{2}{2} \sum_{i=1}^{n} i^{2}
262K
det| 9 4 ; 1 10 | = 86
196K
\frac{9}{1} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
218K
\oint_C \vec{F}\cdot d\vec{r} = 0