Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 18:22Z
det| 11 8 ; 0 12 | = 132
∑_{k=1}^{n} k = n(n+1)/2
244K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
52K
N₂ + 3H₂ ⇌ 2NH₃
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 9 4 ; 1 10 | = 86
100K
∑_{k=1}^{n} k = n(n+1)/2
50K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
197K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
196K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
299K