F(x, y, z) = zexyi − 3zexyj + xyk,

Evaluate the surface integral double integral s F.ds for the given vector field F and the oriented surface . In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x,y,z)=ze^xyi-3ze^xyj+xyk, S is the parallelogram of Exercise 5 with upward orientation