Question

dados A= 1, 2,3 e B =-5,5 determine:
a)A×B
b)B×A

Answer 1

A = { 1 , 2 , 3 }

B={ -5 , 5 }

 Produto cartesiano

$AXB=\{(1,-5);(1,5);(2,-5);(2,5);(3,-5);(3,5)\} \\ \\ BXA=\{(-5,1);(-5,2);(-5,3);(5,1);(5,2);(5,3)\}$

Answer 2

Resposta:

A=(-1,2,3)

B=(-5,5)

A×B = (1,-5),(1,5),(2,-5),(2,5),(3,-5),(3,5)

B×A = (-5,1), (-5,2),(-5,3),(5,1),(5,2),(5,3)