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Which of the following statements are true |
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Answer» Answer: WHERE ARE THEY DEAR Explanation: usual, PROVE it using the general HEURISTIC that X=YX=Y if and only if X⊆Y and X⊇Y.X⊆Y and X⊇Y. In other WORDS, take a generic element of A×(B−C)A×(B−C) and SHOW that it also must be an element of (A×B)−(A×C)(A×B)−(A×C), and vice versa. |
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