Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 01:55Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
479K
3β² + 6β + 2 = 0
det| 11 9 ; 0 12 | = 132
129K
F = ma
det| 3 6 ; 0 4 | = 12
390K
\frac{8}{7} \sum_{i=1}^{n} i^{2}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
153K
det| 7 6 ; 1 8 | = 50
338K