Question

A
If A = { {1,2,4,5}, B={2,3,5,6}, C= {4, 5, 6, 7 } tham show that
A- (BnC) - (A-B) U (A-C)​

Answer 1

Step-by-step explanation:

A-(BnC)-(A-B)U(A-C)={1,2,4,5}-({2,3,5,6}n{4,5,6,7})-({1,2,4,5}-{2,3,5,6})U({1,2,4,5}-{4,5,6,7})

={1,2,4,5}-{5,6}-{1,4}U{1,2}

={1,2,4}-{1,2,4}

={ }