Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:36Z
∑_{k=1}^{n} k = n(n+1)/2
det| 8 6 ; 6 9 | = 36
244K
det| 12 5 ; 4 13 | = 136
det| 7 7 ; 4 8 | = 28
90K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 9 6 ; 0 10 | = 90
100K
det| 7 4 ; 4 8 | = 40
50K
det| 4 9 ; 7 5 | = -43
det| 10 7 ; 3 11 | = 89
137K
∑_{k=1}^{n} k = n(n+1)/2
218K
∑_{k=1}^{n} k = n(n+1)/2
299K