Question: Find the flux of the constant vector field v→ = i→ - j→ + 3k→ through the given surface.
1. A square plate of area 4 in the yz-plane oriented in the positive x-direction.
2. The triangular plate with vertices (1, 0, 0), (0, 1, 0), (0, 0, 1), oriented away from the origin.