Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:19Z
∑_{k=1}^{n} k = n(n+1)/2
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
244K
det| 12 5 ; 4 13 | = 136
\binom{n}{k} = \frac{n!}{k!(n-k)!}
90K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
91K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\frac{11}{6} \sum_{i=1}^{n} i^{2}
100K
det| 7 4 ; 4 8 | = 40
50K
det| 4 9 ; 7 5 | = -43
∑_{k=1}^{n} k = n(n+1)/2
197K
det| 1 1 ; 3 2 | = -1
det| 12 9 ; 3 13 | = 129
\frac{2}{2} \sum_{i=1}^{n} i^{2}
218K
det| 3 8 ; 6 4 | = -36
F = ma
CaCO₃ → CaO + CO₂