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Let U = {x : x ∈ N, x ≤ 9}; A = {x : x is an even number, 0 < x < 10}; B = {2, 3, 5, 7}. Write the set (A U B)’.

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As an experienced tutor registered on UrbanPro, I can guide you through this problem. First, let's break down the sets: U = {x : x ∈ N, x ≤ 9} represents the set of natural numbers less than or equal to 9. A = {x : x is an even number, 0 < x < 10} represents the set of even numbers...
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As an experienced tutor registered on UrbanPro, I can guide you through this problem. First, let's break down the sets:

  • U = {x : x ∈ N, x ≤ 9} represents the set of natural numbers less than or equal to 9.
  • A = {x : x is an even number, 0 < x < 10} represents the set of even numbers between 0 and 9.
  • B = {2, 3, 5, 7} represents the set of prime numbers less than 10.

Now, we need to find the complement of the union of sets A and B, denoted as (A U B)'. The union of sets A and B (A U B) contains all elements that are in either set A or set B, or in both.

  • A U B = {0, 2, 4, 6, 8, 3, 5, 7} (includes all even numbers from A and prime numbers from B)

Now, the complement of this union set (A U B)' contains all elements that are in the universal set U but not in the set (A U B).

  • (A U B)' = U - (A U B)

Let's calculate:

U = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

(A U B) = {0, 1, 2, 3, 4, 5, 6, 7, 8}

So, (A U B)' = {9}

Therefore, the set (A U B)' is {9}. This means it contains only the element 9, as it's the only element in the universal set U that is not in the union of sets A and B.

 
 
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