4400 Higher November 2009 Paper 3 Q6

(a) \(S = \{1, 3, 5, 7\}\)
\(T = \{2, 3, 7, 11\}\)
How many members are there in \(S \cup T\)? (1)

(b) \(U = \{3, 4, 5\}\)
\(U \cup V = \{1, 2, 3, 4, 5\}\)
The set \(V\) has as few members as possible.
List the members of the set \(V\). (1)

(c) \(A = \{\text{Cats}\}\)
\(B = \{\text{Black animals}\}\)
Describe the members of \(A \cap B\). (1)