(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

By computing ∇(1/r) show that

∫∇²(1/r).dV = -4Pi if the volume 'V' is a sphere containing the origin.

3. The attempt at a solution

∫∇²(1/r).dV = ∫∇(1/r).dS But I cant differentiate (1/r) since the sphere contains the origin. Im wondering if there's any other way to tackle this.

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# Homework Help: Gauss's Theorem

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