Question

Heelp!!! exercitile 6 si 7

Answer 1

6. A= {1,2}
B= {1,2,5}
C= { 4,6}
a) (A∪B)∩C= {1,2,5}∩C= ∅
b) A∪(B∩C)= A∪ {∅}=∅
c) C/(A∪B)= C / {1,2,5}= {4,6}

7.A= {1,2, a}
B= { 1,b,3}
A∪B = A∩B => a=3; b=2 pt. ca, daca e asa => {1,2,3} = {1,2,3}
a+b=?
2+3=5

Sper ca te-am ajutat!