Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 16:49Z
det| 6 2 ; 7 7 | = 28
det| 1 4 ; 2 2 | = -6
479K
det| 10 3 ; 4 11 | = 98
8K
∫₀^∞ e^(-x²) dx = √π / 2
\frac{1}{3} \sum_{i=1}^{n} i^{2}
\frac{2}{2} \sum_{i=1}^{n} i^{2}
264K
∑_{k=1}^{n} k = n(n+1)/2
276K
d/dψ [ψ^7] = 7ψ^6
det| 2 4 ; 4 3 | = -10
257K
F = G m₁m₂ / r²
det| 7 4 ; 4 8 | = 40
256K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
46K
det| 7 2 ; 3 8 | = 50
164K
4y² + 9y + 0 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}