Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:31Z
∑_{k=1}^{n} k = n(n+1)/2
det| 12 5 ; 4 13 | = 136
det| 11 9 ; 0 12 | = 132
91K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\lim_{α\to 0} \frac{\sin α}{α} = 1
50K
det| 4 9 ; 7 5 | = -43
\frac{11}{6} \sum_{i=1}^{n} i^{2}
137K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
197K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
218K