A, B and C are three non-empty sets. If A ⊂ B and B ⊂ c,
then which of the following is true?
(a) B - A = C - A (b) A ⋂ B ⋂ C = B
(c) A ⋃ B = B ⋂ C (d) A ⋃ B ⋃ C = A
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3
Answer:
d is correct answer as AUBUC are subset of a so
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