Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:55Z
∑_{k=1}^{n} k = n(n+1)/2
det| 9 4 ; 1 10 | = 86
244K
det| 12 5 ; 4 13 | = 136
\oint_C \vec{F}\cdot d\vec{r} = 0
90K
det| 1 2 ; 7 2 | = -12
91K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
100K
\lim_{α\to 0} \frac{\sin α}{α} = 1
50K
det| 4 9 ; 7 5 | = -43
det| 2 4 ; 4 3 | = -10
137K
∑_{k=1}^{n} k = n(n+1)/2
262K
\frac{8}{6} \sum_{i=1}^{n} i^{2}
218K