Question

A={2,3,4,5},B={1,3,4,5,6},C={1,3,4,5,7,8}&U={1,2,3,4,5,6,7,8}
1)A-(B union C)
2)A' intersection B'
3)(A-B)intersection (A-C)

Answer 1

Answer:

1){2}

2){7,8}

3){2}

Step-by-step explanation:

1)A={2,3,4,5}-

BUC={1,3,4,5,6,7,8}

={2}

2)A'={1,6,7,8}

B'={2,7,8}

A'nB'{7,8}

3)A-B={2,3,4,5}-{1,3,4,5,6}={2}

A-C={2,3,4,5}-{1,3,4,5,7,8}={2}

(A-B)n(A-C)={2}