2,736*57 I need a lot of help.....
1 answer:
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Denote the unit sphere by 
. If the sphere is closed, then the flux of 
across is given by the divergence theorem to be
where
denotes the space with boundary . We have
So the flux across is equivalent to
We convert to spherical coordinates to evaluate the integral:
where
So the flux across
We convert to spherical coordinates to evaluate the integral:
Answer:
•°• LHS = RHS
✏ Hence, proved.
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