Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 17:41Z
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
479K
8β² + 2β + 0 = 0
det| 4 6 ; 4 5 | = -4
276K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
129K
∑_{k=1}^{n} k = n(n+1)/2
Fe₂O₃ + 3CO → 2Fe + 3CO₂
191K
\lim_{r\to 0} \frac{\sin r}{r} = 1
\binom{n}{k} = \frac{n!}{k!(n-k)!}
1K
CH₄ + 2O₂ → CO₂ + 2H₂O
153K
det| 12 1 ; 1 13 | = 155
N₂ + 3H₂ ⇌ 2NH₃
det| 7 4 ; 4 8 | = 40
188K
det| 5 5 ; 2 6 | = 20