Let D be the solid region trapped inside the cylinder x² + y² horizontal planes z = 0 and z = 3. write = D= = {(r, 0, z) |? ≤r <≤?, ? ≤ 0 ≤?, ? ≤ z }, where the question marks can be numbers or functions. 4 and between the Write D as a set of triples in cylindrical coordinates. In other words,

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