Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 08:21Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
75K
11n² + 1n + 0 = 0
CH₄ + 2O₂ → CO₂ + 2H₂O
129K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
390K
4y² + 8y + 1 = 0
det| 9 4 ; 1 10 | = 86
1K
det| 11 7 ; 4 12 | = 104
det| 11 9 ; 1 12 | = 123
∑_{k=1}^{n} k = n(n+1)/2
ω = 2πf
det| 5 2 ; 2 6 | = 26