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in Sets, Relations and Functions by (46.2k points)
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If P and Q any two sets, then Q – P = 

(a) Q ∪ P′ 

(b) Q ∩ P′ 

(c) Q′ ∩ P′ 

(d) Q′ ∩ P′

1 Answer

+1 vote
by (49.2k points)
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Best answer

For all x ∈ Q – P ⇒ x ∈ Q and x ∈ P 

⇒ x ∈ Q and x ∈ P′ 

⇒ x ∈ Q ∩ P′ 

∴ Q – P = Q ∩ P′

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