this is a set question what this answer please show me
(A-B) U(B-A)
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math](A-B) \cup (A \cap B)[/math]
[math]= (A \cap B^C) \cup (A \cap B)[/math]
[math]= A \cap (B^C \cup B)[/math] This is the distributive property
[math]= A \cap U[/math] where [math]U[/math] is the “universe” of sets you are working in
[math]= A[/math]
[math]= (A \cap B^C) \cup (A \cap B)[/math]
[math]= A \cap (B^C \cup B)[/math] This is the distributive property
[math]= A \cap U[/math] where [math]U[/math] is the “universe” of sets you are working in
[math]= A[/math]
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