Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 21:15Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
75K
det| 7 4 ; 4 8 | = 40
479K
\oint_C \vec{F}\cdot d\vec{r} = 0
det| 10 9 ; 0 11 | = 110
129K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 5 3 ; 2 6 | = 24
390K
det| 1 4 ; 3 2 | = -10
1K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
153K