Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 01:27Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
75K
3β² + 6β + 2 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
276K
F = ma
det| 9 4 ; 1 10 | = 86
390K
\frac{8}{7} \sum_{i=1}^{n} i^{2}
det| 1 4 ; 3 2 | = -10
1K
1x² + 5x + 7 = 0
det| 11 4 ; 5 12 | = 112
473K
det| 7 6 ; 1 8 | = 50
338K
∇²ψ = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
188K
AgNO₃ + NaCl → AgCl↓ + NaNO₃