Question

Dados los intervalos A = [-5, 8] y B = ] 5, ∞ [ encuentre A U B.

Answer 1

Tenemos.
A = [- 5 , 8]
B =  (5 , ∞)
A                                     [xxxxxxxxxxxxxxxxxxxxxxx]
<--------------------------------¡---------------------------------------¡---------------------------->                                                    -5                                             8


B
<-------------------------------------------------------¡-------------------------------------------------->                                                                          5
                                                                   (xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

AUB = [- 5 , ∞)

Respuesta.
AUB = [- 5 , ∞)