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Mathematics
If (A ∪ B) ∩(A ∩ B)=A, then which of the following is true?
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Q. If $(A \cup B) \cap(A \cap B)=A$, then which of the following is true?
Sets
A
(a) $A \subset B$
B
(b) $B \subset A$
C
(c) $A=\phi$
D
(d) Both (a) and (c)
Solution:
Use the concept of subsets.