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 a subset of complement of B
b
B is a subset of A
c
A and B are disjoint
d
A and the complement of B are non-disjoint
answer is D.
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Detailed Solution
Given that A⊄B , then it is not necessary that B is subset of A as shown in figure.Also, it is not necessary that A and B are disjoint.Obviously, A and complement of B are not disjoint.