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cabin5
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Homework Statement
By appropriate limiting procedures prove the following expansion
[tex]\frac{1}{\left(\rho^2+z^2\right)^{1/2}}=\int^{\infty}_{0} e^{-k\left|z\right|}J_{0}(k\rho)dk[/tex]
Homework Equations
The Attempt at a Solution
I tried to implicate the fourier-bessel series but it turned out that there is no k dependence on coefficients of the series.
What can I do to proceed this question?