Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:55Z
∑_{k=1}^{n} k = n(n+1)/2
det| 12 5 ; 4 13 | = 136
\binom{n}{k} = \frac{n!}{k!(n-k)!}
90K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
91K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\frac{2}{2} \sum_{i=1}^{n} i^{2}
50K
det| 4 9 ; 7 5 | = -43
∫₀^∞ e^(-y²) dy = √π / 2
137K
\frac{11}{6} \sum_{i=1}^{n} i^{2}
218K
\frac{8}{6} \sum_{i=1}^{n} i^{2}
299K