Question

Considere o diagrama

Determine:
a) X ∩ Y
b)X ∩ Z
c)Y ∩ Z
d)X ∩ Y ∩ Z

Answer 1

a)

X∩Y = {2 ,3}

b)

X∩Z = {3 ,4}

c)

Y∩Z = {3 ,6}

d)

X∩Y∩Z = {3}.