Question

If A = {1,4}, B = {4,5}, C = {5,7} , determine
i) (A×B)∪(A×C)
ii) (A×B)∩(A×C)

Answer 1

Step-by-step explanation:

Now,A×B={(1,4),(1,5),(4,4),(4,5)}

A×C={(1,5),(1,7),(4,5),(4,7)}

1)(A×B)U(A×C)= {(1,4),(1,5),(1,7),(4,4),(4,5),(4,7)}

2)(A×B)∩(A×C)= {(1,5),(4,5)}