Question

Se a={1,2,3,4,5}, b={2,3,7} e c={2,4,6} determine:
a)A U B=
b)A ∩ B=
c)(A U B) ∩ ( B U C)=

Answer 1

Se a={1,2,3,4,5}, b={2,3,7} e c={2,4,6} determine:

a)A U B=

{1,2,3,4,5,7}

b)A ∩ B=

{2,3}

c)(A U B) ∩ ( B U C)=

{1,2,3,4,5,7} ∩ {2,3,4,67}=

{2,3,4,7}