Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 16:24Z
det| 6 2 ; 7 7 | = 28
\frac{2}{2} \sum_{i=1}^{n} i^{2}
479K
det| 9 9 ; 5 10 | = 45
8K
∫₀^∞ e^(-x²) dx = √π / 2
\frac{1}{3} \sum_{i=1}^{n} i^{2}
d/dψ [ψ^7] = 7ψ^6
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
257K
det| 3 3 ; 4 4 | = 0
250K
F = G m₁m₂ / r²
∑_{k=1}^{n} k = n(n+1)/2
62K
det| 7 4 ; 4 8 | = 40
256K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
\binom{n}{k} = \frac{n!}{k!(n-k)!}
46K
4y² + 9y + 0 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}