If the set U = {all positive integers} and set A = {x|x ∈ U and x is an odd positive integer}, which describes the complement of set A, Ac?

The complement of A contains the elements in the universal set U that are not in A. Since U is all positive integers and A contains the odd positive integers, the remaining elements are the even positive integers. Therefore, the complement is described by “Ac = {x | x ∈ U and x is an even positive integer}.”

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