Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:14Z
∑_{k=1}^{n} k = n(n+1)/2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
244K
det| 9 4 ; 1 10 | = 86
52K
det| 12 5 ; 4 13 | = 136
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
91K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
100K
det| 8 5 ; 3 9 | = 57
50K
det| 4 9 ; 7 5 | = -43
∫₀^∞ e^(-φ²) dφ = √π / 2
137K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
197K
det| 1 1 ; 3 2 | = -1
det| 12 9 ; 3 13 | = 129
∑_{k=1}^{n} k = n(n+1)/2
218K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
299K