/ u ',., d H {'t', v is in even integer. -> La , ..x u,' c C' # {4.5.(x,7 k'} f l' md 73 are infinite sets. B and C are fm'uc ge ----------- MW'/,/dwfi-W;NN. rms. ;. at. set X z {xzx rs . At the opposit ' ' red in Example 2.1(C)This g x. 4,' Can gh that it has been gwen d the empty set (Or "Gi"s sets. 2 Show how the descrlptlons of the followm c ' defined collections: g "scum uk l elderly people a. The collection of al ' of all: expensive cars f all tricky questions c. The collection 0 Use the list format to Me? n'fs "Sikh 3. Let N = {1,2,3,4,. c. {xzxe ,20