Question: 13. Prove that (a) P(EF c ) = P(E )P(EF ) (b) P(EcF c ) = 1P(E )P(F )+P(EF )

13. Prove that

(a) P(EF c ) = P(E )−P(EF )

(b) P(EcF c ) = 1−P(E )−P(F )+P(EF )

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