Using properties of sets, show that:
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6
Answer:
LHS = A ∩ (A ∪ B)
Use distribution property,
e.g., P\cap(Q\cup R)=(P\cap Q)\cup(P\cap R)P∩(Q∪R)=(P∩Q)∪(P∩R)
= (A ∩ A) ∪ (A ∩ B)
Use relation A ∩ A = A
= (A ∩ A) ∪ (A ∩ B)
= A ∪ (A ∩ B)
= A = RHS
Hence, A ∩ (A ∪ B) = A
Step-by-step explanation:
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Answered by
7
A ∩ (A ∪ B) = A
L.H.S
⇒ A ∩ (A ∪ B)
Using distribution property we get
⇒ (A ∩ A) ∪ (A ∩ B)
Use relation A ∩ A = A
⇒ (A ∩ A) ∪ (A ∩ B)
⇒ A ∪ (A ∩ B)
⇒ A
R.H.S
Hence, A ∩ (A ∪ B) = A
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