若P(A+B)=0.9;P(A)=0.6;P(B)=0.5则P(AB)=

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若P(A+B)=0.9;P(A)=0.6;P(B)=0.5则P(AB)=若P(A+B)=0.9;P(A)=0.6;P(B)=0.5则P(AB)=若P(A+B)=0.9;P(A)=0.6;P(B)=0.

若P(A+B)=0.9;P(A)=0.6;P(B)=0.5则P(AB)=
若P(A+B)=0.9;P(A)=0.6;P(B)=0.5则P(AB)=

若P(A+B)=0.9;P(A)=0.6;P(B)=0.5则P(AB)=
p(AB)=0.1