Question: If AB = A and C A, then which of the following is equivalent to (AB)(C B)? Explain your solution. a) B b) C

If A∩B = A and C ⊆ A, then which of the following is equivalent to (A−B)∪(C ∪B)? Explain your solution. 

a) B 

b) C 

c) {} 

d) A∪C

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