Answer:
A U B = {x|x is an integer}
Step-by-step explanation:
If A={x|x is an odd integer} then:
A = 1, 3, 5, 7, 9, 11, etc.
(Negative odd integers are also included)
and B= {x|x is an even integer}
A = 2, 4, 6, 8, 10, 12, 14, etc.
(Negative even integers are also included)
We have that a u b is going to be the set of all integer numbers. That is to say:
A U B = {x|x is an integer}
