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Homework Statement
Let S be a smooth surface enclosing the volume V, and let [itex]\vec{n}[/itex] to be the unit outward normal. Using the Divergence Theorm show that:
∫∫ x [itex]\vec{r}[/itex] ° [itex]\vec{n}[/itex] dS = 4 * ∫∫∫ x dV,
where [itex]\vec{r}[/itex]=(x,y,z)
Homework Equations
Divergence theorm
http://www.math.oregonstate.edu/home...rg/diverg.html [Broken]
The Attempt at a Solution
I tried to change the form of the those two equations to the form stated in divergence theorm and then to compare the u (or F as in link above), but the u (F) on the left hand side is never equal to this on the right.
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