Question

Fie A={2,a},B={c,3},C={4,5,6}.Calculati A×B,A×C,B×C,C×A,B×A,C×B

Answer 1

AxB={(2,c),(2,3),(a,c),(a,3)}
AxC={(2,4),(2,5),(2,6),(a,4),(a,5),(a,6)}
BxC={(c,4),(c,5),(c,6),(3,4),(3,5),(3,6)}
CxA={(4,2),(4,a),(5,2),(5,a),(6,2),(6,a)}
BxA={(c,2),(c,a),(3,2),(3,a)}
CxB={(4,c),(4,3),(5,c),(5,3),(6,c),(6,3)}