Question

) Dados os conjuntos A = {1, 2, 3}, B = {1, 2, 3, 4} e C = {2, 3, 4}, determine:
a) A X B
b) A X C
c) A X A
d) C X A

Answer 1

A x B = { (1,2) (1, 2) (1,3) (1,4) (2,1) (2,2) (2,3) (2,4) (3,1) (3,2) (3,3) (3,4) }

A x C = {( 1,2) (1,3) (1,4) (2,2) (2,3) (2,4) (3,2) (3,3) (3,4)}

A x A ={( 1,1) (1,2) (1,3) (2,1) (2,2) (2,3) (3,1) (3,2) (3,3)}

C x A ={(2,1) (2,2) (2,3) (3,1) (3,2) (3,3) (4,1) (4,2) (4,3)}