1) What is the symbol for union? a) ∩ b) ∪ c) ⊆ d) ⊂ 2) What does 'A ∩ B' represent? a) Union of A and B b) Intersection of A and B c) Subset of A d) Complement of B 3) What is the complement of a set A? a) Elements not in A b) Elements in A c) Union of A d) Intersection of A 4) What is the symbol for intersection? a) ∪ b) ∩ c) ⊆ d) ⊂ 5) If A = {1, 2} and B = {2, 3}, what is A ∪ B? a) {1, 2, 3} b) {2} c) {1, 3} d) {1, 2} 6) If A = {1, 2} and B = {2, 3}, what is A ∩ B? a) {2} b) {1, 3} c) {1, 2, 3} d) {1, 2} 7) What is the universal set? a) All possible elements b) Elements in A c) Elements in B d) Empty set 8) What is the empty set symbol? a) ∅ b) ∪ c) ∩ d) ⊆ 9) What symbol represents intersection? a) U b) ∩ c) ∪ d) ⊆ 10) What does '∪' mean? a) Union b) Subset c) Intersection d) Complement 11) What is the complement of a set? a) Elements not in set b) Elements in set c) Union of sets d) Intersection of sets 12) What does 'A ∩ B' mean? a) Elements in both A and B b) Elements in A only c) Elements in B only d) All elements in A and B 13) What does 'A ∪ B' mean? a) All elements in A or B b) Only elements in A c) Only elements in B d) Elements in neither A nor B 14) What is the empty set symbol? a) {} b) ∅ c) U d) ∩ 15) Which of these is a universal set? a) All possible elements b) No elements c) Some elements d) Only one element

FFynone House Maths: Y9 Set Notation

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