Question

Se considera multimile : A = { 1;2 } , B = { 1;2;5 } , C= { 4;6 } . Efectuati :
a) ( A U B ) U intors ( intersectia a doua multimi ) C ;
b) A U ( B U intors C ) ;
c) A \ ( B U intors C )

Answer 1

 a
a)
 (AUB) Π C ={1 2 5} Π C= {1 2 5} Π {4 6} =  Ф

b)
A U (B Π C) = {1,2) U (Ф) =  {1 2}

c) A \   (B Π C)= A \  Ф = {1,2} \  Ф = {1,2}