Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 21:23Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
75K
\oint_C \vec{F}\cdot d\vec{r} = 0
det| 9 4 ; 1 10 | = 86
276K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 10 7 ; 3 11 | = 89
473K
det| 5 9 ; 0 6 | = 30
338K