Question

If A = {x|x is an odd integer), B = {2, 3, 4, 5), list the elements of the set AUB.

Choose the correct answer below.
O A. {x x is an even integer or x = 2 or x = 4}
O B. x is an even integer or x = 3 or x = 5
OC. x
OD. {xx is an odd integer or x = 2 or x = 4}

Answer 1

• D) x is an odd integer or x = 2 or x = 4

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Given two sets:

• A = x is an odd integer, B = {2, 3, 4, 5}

Both sets include 3 and 5 so the combination is all the elements of the A and two unique elements of the B:

• A∪B = x is an odd integer or x = 2 or x = 4

The matching choice is D.