Question

Se AxB = {(2,3),(2,4);(2,5),(4,3),(4,4),(4,5} então:

a) A={2,4} e B={3,4,5}
b) A={3,4,5} e B={2,4}
c) A={2,3} e B={3,4,5}
d) A={2,4} e B={ 3,5}

Answer 1

AxB = {(2,3),(2,4);(2,5),(4,3),(4,4),(4,5} 

A = { 2,4 }

B = { 3,4,5 }