Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:41Z
∑_{k=1}^{n} k = n(n+1)/2
det| 9 4 ; 1 10 | = 86
244K
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
52K
det| 12 5 ; 4 13 | = 136
\lim_{x\to 0} \frac{\sin x}{x} = 1
91K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\frac{8}{6} \sum_{i=1}^{n} i^{2}
100K
det| 4 9 ; 7 5 | = -43
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
197K
det| 1 1 ; 3 2 | = -1
∑_{k=1}^{n} k = n(n+1)/2
196K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
218K
\frac{2}{2} \sum_{i=1}^{n} i^{2}
299K