概率论A,B为相互独立的随机事件P(A)=0.6 P(B)=0.5,则P(A|(A+B))=

P(A|(A+B))=P(A.(A+B))/P(A+B)=P(A)/P(A+B)
p(AB)=p(A)p(B)=0.3
p(A+B)=p(A)+p(B)-p(AB)=0.8
P(A|(A+B))=0.6/0.8=0.75