Two events EEE and FFF have P(E)=0.4P(E) = 0.4P(E)=0.4, P(F)=0.5P(F) = 0.5P(F)=0.5, and P(E∪F)=0.8P(E \cup F) = 0.8P(E∪F)=0.8. Find P(Fc∣Ec)P(F^c|E^c)P(Fc∣Ec).
0.5
0.667
0.25
0.75