Question

A={2,3,4,5}, B={1,2,3,4,5,6,7}, U={1,2,3,4,5,6,7,8,9,10}.find A'&B' & show that B' is a subset of A'​

Answer 1

Therefore,

A'={1,6,7,8,9,10}

B'={8,9,10}

Therefore all elements of B' are present in A'. So B' is a subset of A'.