Question

Solve for AUB' if U={1,2,3,4,5,6,7,8}, A={1,2,4,5,8}, and B={2,3,4,6}

Answer 1

in B' the elements in U that are not in B

so B" = { 1, 5, 7, 8}

then A union B' are the elements in A and B' but repeated elements are written once.