pumkinsrck8631 pumkinsrck8631 08-01-2024 Mathematics contestada If a = 2ˆax - 3ˆay + 2ˆaz at all points P, (a) find the expression for a in the cylindrical coordinate system. (b) Evaluate the expression at the points P₁(1, 60°, 2) and P₂(2, 30°, 4).