1.

Match List-I with List-II and select the correct answer using the codes given below for the lists:List - IList - II(A) (E – A) ∪ (Ε – A′)1. ϕ(Β) (Ε – [(Α ∪ A′) – (Α ∩ A′)]2. A(C) (Ε ∩ (Α – A′) ∪ Α3. A′(D) [(E – ϕ) ∪ (ϕ – E)] – A4. ΕHere A′ is the complement set of A, E is the universal set and ϕ is an empty set. Codes: ABCD(a)4123(b)4321(c)2341(d)2143

Answer»

(a) A- 4, B- 1, C- 2, D- 3

(A) (E – A) ∪ (E – A′) = A′ ∪ A = E 

(B) E – {(A ∪ A′) – (A ∩ A′)} 

= E – { E – ϕ

= E – E + ϕ = ϕ 

(C) {E ∩ (A – A′) } ∪ A 

= {E ∩ A} ∪ A = A ∪ A = A 

(D) {(E – ϕ) ∪ (ϕ – E)} – A 

= {E ∪ ϕ} – A = E – A = A′



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