Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 16:51Z
det| 6 2 ; 7 7 | = 28
det| 7 4 ; 4 8 | = 40
479K
∫₀^∞ e^(-x²) dx = √π / 2
Fe₂O₃ + 3CO → 2Fe + 3CO₂
102K
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
276K
d/dψ [ψ^7] = 7ψ^6
F = G m₁m₂ / r²
det| 11 9 ; 5 12 | = 87
62K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
46K
4y² + 9y + 0 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}