Question

Sejam A= {1,2,3} e B = {a,b} , determine
a) AxB
b) AxA

Answer 1

Olá,

a) 
AxB = {(1,a), (1, b), (2, a), (2, b), (3, a), (3, b)}

b)
AxA = {(1, 1), (1, 2), (1, 3), (2, 1), (2, 2), (2, 3), (3, 1), (3, 2), (3, 3)}

Bons estudos ;)