Let r = x i + y j + z k and r =|r|. Verify each identity.
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Let r = x i + y j + z k and r =|r|.
Verify each identity.
(a) ∇ · r = 3
(b) ∇ · (rr) = 4r
(c) ∇2r3 = 12r
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Related Book For
Calculus Early Transcendentals
ISBN: 9781337613927
9th Edition
Authors: James Stewart, Daniel K. Clegg, Saleem Watson, Lothar Redlin
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