Question #47046
Prove that if A and B are any two sets such that A is proper subset of B, then A union B=B-
1) by direct method
2) by proving its contrapositive.
3) by contradiction.
1) by direct method
2) by proving its contrapositive.
3) by contradiction.
Expert's answer
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#340153 on Dec 2023
#340153 on Dec 2023
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