If A, B and C are three sets such that A ∩ B = A ∩ C and A ∪ B = A ∪ C, then:
Answer & explanation
Correct answer: option 3
$A ∩ B-A ∩ C=\phi$ and $A ∪ B - A ∪ C=\phi$
$A ∩ (B-C)=\phi$ and $A ∪ (B - C)=\phi$
Both possible if B = C
If A, B and C are three sets such that A ∩ B = A ∩ C and A ∪ B = A ∪ C, then:
Correct answer: option 3
$A ∩ B-A ∩ C=\phi$ and $A ∪ B - A ∪ C=\phi$
$A ∩ (B-C)=\phi$ and $A ∪ (B - C)=\phi$
Both possible if B = C