If P(A)=0.5,P(B)=0.4P(A) = 0.5, P(B) = 0.4P(A)=0.5,P(B)=0.4, and P(A∪B)=0.7P(A \cup B) = 0.7P(A∪B)=0.7, find P(Ac∣B)P(A^c | B)P(Ac∣B).
0.2
0.25
0.5
0.4