Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:18Z
∑_{k=1}^{n} k = n(n+1)/2
det| 9 4 ; 1 10 | = 86
244K
det| 12 5 ; 4 13 | = 136
det| 4 6 ; 4 5 | = -4
90K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
91K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\lim_{x\to 0} \frac{\sin x}{x} = 1
100K
∑_{k=1}^{n} k = n(n+1)/2
137K
\oint_C \vec{F}\cdot d\vec{r} = 0
197K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
196K
\oint_C \vec{F}\cdot d\vec{r} = 0
218K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
299K