題目:
-> ^ ^ ^
(a) show that vector F = (y^2 cosx +z^3)i +(2ysinx-4)j+(3xz^2 +2)k is a
conservative field
->
(b) find the scalar potential function for F
第一小題只要看F的旋度是否是零就可以證了
第二小題要怎麼算呢?