Question: ( 1 0 points ) Among all smooth, simple closed and counterclockwise curves in the plane, find the one along which the work done by

(10 points) Among all smooth, simple closed and counterclockwise curves in the plane, find the one along which the work done by
F=(14x2y+13y3)i+xj
is greatest. (Hint. Where is (gradF)*k positive?)
( 1 0 points ) Among all smooth, simple closed

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