Math Dump /sym/93a449
id=754940 · host=jp.commstar.world · 2026-09-01 21:06Z
∑_{k=1}^{n} k = n(n+1)/2
det| 4 1 ; 6 5 | = 14
402K
5φ² + 9φ + 5 = 0
det| 5 3 ; 7 6 | = 9
398K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
CH₄ + 2O₂ → CO₂ + 2H₂O
9r² + 4r + 5 = 0
det| 1 4 ; 4 2 | = -14
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\lim_{t\to 0} \frac{\sin t}{t} = 1
CaCO₃ → CaO + CO₂
iħ ∂ψ/∂t = Ĥψ
det| 5 4 ; 3 6 | = 18
\frac{9}{4} \sum_{i=1}^{n} i^{2}