Events A,BA, BA,B are independent. P(A)=0.5,P(B)=0.2P(A)=0.5, P(B)=0.2P(A)=0.5,P(B)=0.2. What is P(Ac∣A∪B)P(A^c | A \cup B)P(Ac∣A∪B)?
1/6
1/3
1/2
2/3