Question: (a) Find the divergence of the function v = r/r. First compute it directly, as in Eq. 1.84. Test your result using the divergence theorem,

(a) Find the divergence of the function v = r/r. First compute it directly, as in Eq. 1.84. Test your result using the divergence theorem, as in Eq. 1.85. Is there a delta function at the origin, as there was for r/r2? What is the general formula for the divergence of rn r?

(b) Find the curl of rn r?. Test your conclusion using Prob. 1.60b.

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