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2. a) Sketch the 3D-volume of the solid defined in the integral (do not solve the integral) : f(x, y, z)d.cdydz b) Consider the iterated integral SIC 54,99)dz dy de The order of integration is first with respect to z, then y, and then r. Express this integral by changing the order of integration to be first with respect to r, then z, and then y (do not solve the integral; a sketch of the domain of integration may help) [2+3=5 marks] 2. a) Sketch the 3D-volume of the solid defined in the integral (do not solve the integral) : f(x, y, z)d.cdydz b) Consider the iterated integral SIC 54,99)dz dy de The order of integration is first with respect to z, then y, and then r. Express this integral by changing the order of integration to be first with respect to r, then z, and then y (do not solve the integral; a sketch of the domain of integration may help) [2+3=5 marks]