1) Which of the following is a union, given A=(1,2,3,4 ), B=(2,3,4,5) a) A∪B = (2,3,4) b) A∩B = (1,2,3) c) A∪B = (1,2,3,4) d) A∩B = (2,3,4) 2) Which of the following is an intersection given A=(a,b,c,d,e,f ), B=(a,c,f,g,i,) a) A∪B = (b,d,g) b) A∪B = (a,b,c,d) c) A∪B = (a,c,f) d) All of the above 3) Which of the following is a disjoint set? a) b) c) d) 4) A is a proper subset of B. Which of the following is the representation of A⊆B? a) b) c) d) 5) Which of the following is an empty or null set? a) b) c) d)

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