Question

1) Sendo A= ]-3,4[ e B= [-1,6[ calcule :

a) A U B

b) A ∩ B

c) A - B

Answer 1

A = {-2,-1,0,1,2,3}
B = { 0,1,2,3,4,5}

a) A U B = { -2,-1,0,1,2,3,4,5}
b) A ∩ B = { 0,1,2,3}
c) A - B = { -2,-1 }