Let E be the ball of radius 5 centered on the origin from which the cylinder about the z-axis of radius 4 is removed. (a) The volume of E is: 53 53 (1) Larger than 3 (2) Smaller than 47 24 3 (3) Both (1) and (2) (4) Neither (1) nor (2) (b) In standard cylindrical coordinates, E can be parametrised by -Vr² – 16 < z < Vr² – 16 Vz? + 16

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