Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 01:26Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
75K
3β² + 6β + 2 = 0
\oint_C \vec{F}\cdot d\vec{r} = 0
276K
F = ma
det| 5 2 ; 3 6 | = 24
191K
det| 10 7 ; 3 11 | = 89
390K
\frac{8}{7} \sum_{i=1}^{n} i^{2}
det| 9 4 ; 1 10 | = 86
1K
1x² + 5x + 7 = 0
det| 4 8 ; 1 5 | = 12
∇²ψ = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃
3φ² + 8φ + 6 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}