Which one of the following is correct? a)`Auu(B-C) =Ann(BnnC')` b) `A-(BuuC)=(AnnB')nnC'` c) `A-(BnnC)=(AnnB')nnC` d) `Ann(B-C) =(AnnB)nnC`

Which of the following are corect: 1. A-B=A - (Ann B) 2. A = (A nnB) uu (A-B) 3. A - (B uu C) =(A-B) uu (A-C)

Let A={a,b,c,d},B={c,d,e} and C={d,e,f,g} . Then verify each of the following identities: (i) Axx(BnnC)=(AxxB)nn(AxxC) (ii) Axx(B-C)=(AxxB)-(AxxC) (iii) (AxxB)nn(BxxA)=(AnnB)xx(AnnB)

If A and B are two non empty sets the prove the following1.n(AuuB)=n(A)+n(B)-n(AnnB) ." " 2. nAuuBuuC)=n(A)+n(B)+n(C)-n(AnnB)-n(BnnC)-n(Cnna)+n(AnnBnnC)

If n(AnnB)=20 , n(AnnBnnC)=5 , then n(Ann(B-C)) is

If P(A|B) gt P(A), then which of the following is correct: (A) P(B" "|" "A)" "lt;" "P(B) (B) P(AnnB) lt P(A)* P(B) (c) P(B|A) gt P(B) (D) P(B" "|" "A)" "=" "P(B)

Which one of the following operations on sets is not correa where B' denotes the complement of B? a)(B'-A')U(A'-B')=(AUB)-(AnnB) b)(A-B)U(B-A)=(A'UB')-(A'nnB') c)(B'-A')n(A'-B')=(B-A)nn(A-B) d)(B'-A')n(A'-B')=(B-A')U(A'-B)