Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 01:59Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
75K
3β² + 6β + 2 = 0
det| 7 4 ; 4 8 | = 40
276K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
129K
F = ma
det| 5 2 ; 3 6 | = 24
191K
det| 5 6 ; 2 6 | = 18
390K
\frac{8}{7} \sum_{i=1}^{n} i^{2}
∫₀^∞ e^(-t²) dt = √π / 2
1K
det| 11 5 ; 0 12 | = 132
473K