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November 13th, 2008, 03:31 PM   #1
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Curl of a Radial field

Hi can anyone please help me with this:

Let f : R3 to R3 be a radial field, i.e. f (x) = g(||x||) x/||x|| for x ?0. Show that
Curl f = 0
(i)By direct computation
(ii)By using spherical coordinates


thank you.
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