Verified answer

Dados A = (3,10] e B = {x∈|R/x≤8} faça:

B => ( 0,1,2,3,4,5,6,7,8 )

a) AUB = ( 0,1,2,3,4,5,6,7,8, 10) )

b) A∩B = ( 3 )

c) A – B = ( 3 )