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a old post again

See again my post here

I wonder why Mathematica 5.2 fails to evaluate symbolically the
following integral

Integrate[(Log[a*x]/Sqrt[1 + x^2])*BesselJ[0, x], {x, 0, Infinity}]
BesselI[0, 1/2]*BesselK[0, 1/2]*Log[a]


NIntegrate[(Log[x]/Sqrt[1 + x^2])*BesselJ[0, x], {x, 0, Infinity},
Method -> Oscillatory]


Mathematica 4.0 succeds?


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