[DL:4/5, ETA: 45] Two different ideal dielectrics fill all of space. The relative permittivity in the region where 6x - 2y + 3z > 6 is er1 = 3.5, while the relative permittivity everywhere else is €,2 = 5. In each dielectric region, the electric field intensity is constant. Given the electric field intensity E(2,2,0) (-36, 42, 198) V/m, find the electric flux density at the point (-2, 6, 4). =
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