Use Stokes' Theorem to evaluate ∬_S curl F · dS
where F(x, y, z) = e^{xy}i - 2e^{xz}j + 4x^2zk and S is the half of the ellipsoid x^2 + y^2 + z^2 = 1 that lies to the right of the xz-plane, oriented in the direction of the positive y-axis.
Since the half ellipsoid is oriented in the direction of the positive y-axis, the boundary curve must be traversed clockwise when viewed from the left.
A parametrization for the boundary curve C can be given by:
r(t) = cos(t)i + [ ]j + [ ]k, 0 ≤ t ≤ [ ]
(use the most natural parametrization)
∬_S curl F · dS = ∫_0^b [ ] dt
∬_S curl F · dS = [ ]