Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 15:59Z
\frac{7}{8} \sum_{i=1}^{n} i^{2}
CaCO₃ → CaO + CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
57K
\frac{3}{5} \sum_{i=1}^{n} i^{2}
\lim_{α\to 0} \frac{\sin α}{α} = 1
264K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∑_{k=1}^{n} k = n(n+1)/2
\frac{11}{6} \sum_{i=1}^{n} i^{2}
62K
∇²θ = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
46K
det| 9 1 ; 7 10 | = 83
\oint_C \vec{F}\cdot d\vec{r} = 0