Question

Let U=(1,2,3,4,5,6,7,8) A={1,3,5,7} B={1,3,5,7} C={5,8} D={2,5,8}. What is the subset

Answer 1

U={1,2,3,4,5,6,7,8}; A={1,3,5,7} = B; C={5,8}; D={2,5,8}

All are subset of U

A is a subset of B & vice versa
C is a subset of D, but neither C nor D are subset of A or B