Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 22:17Z
F = G m₁m₂ / r²
\binom{n}{k} = \frac{n!}{k!(n-k)!}
244K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
90K
\frac{11}{6} \sum_{i=1}^{n} i^{2}
91K
2H₂ + O₂ → 2H₂O
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
100K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
50K
det| 8 4 ; 0 9 | = 72
\frac{8}{6} \sum_{i=1}^{n} i^{2}
137K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
197K
det| 3 1 ; 4 4 | = 8
det| 3 3 ; 4 4 | = 0
262K
det| 9 4 ; 1 10 | = 86
196K
det| 2 6 ; 0 3 | = 6
218K
∑_{k=1}^{n} k = n(n+1)/2
299K