Spectra Ledger /sym/2e6562
id=1 · host=commstar.world · 2026-10-19 00:10Z
∇ × E = −∂B/∂t
det| 5 4 ; 5 6 | = 10
36K
det| 11 2 ; 1 12 | = 130
det| 9 5 ; 2 10 | = 80
131K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
158K
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
240K
\oint_C \vec{F}\cdot d\vec{r} = 0
139K
det| 4 2 ; 4 5 | = 12
344K
det| 4 7 ; 0 5 | = 20
91K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
295K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
347K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
333K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
137K