Q.
Let A and B be two non-empty subsets of a set X such that A is not a subset of B, then
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a
A is always a subset of the complement of B
b
B is always a subset of A
c
A and B are always disjoint
d
A and the complement of B are always non-disjoint
answer is D.
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Detailed Solution
∴A is not a subset of B ∴ Some point of A will not be a point of B, So that point will being to complement of B . Hence A and complement of B are always non-disjoint
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