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| 10 9 ; 0 11 | = 110
129K
F = ma
det| 9 4 ; 1 10 | = 86
191K
det| 3 1 ; 7 4 | = 5
390K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
153K