Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 21:55Z
∑_{k=1}^{n} k = n(n+1)/2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
75K
det| 5 6 ; 2 6 | = 18
479K
\oint_C \vec{F}\cdot d\vec{r} = 0
det| 4 8 ; 3 5 | = -4
129K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 11 4 ; 5 12 | = 112
390K
\lim_{α\to 0} \frac{\sin α}{α} = 1
\frac{10}{1} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
F = G m₁m₂ / r²
2H₂ + O₂ → 2H₂O