# Math Help - Set and Probability question

1. ## Set and Probability question

hi.. i have no idea what the question is asking...specifically two unions and intersections. how is it possible that 2 of them are used joined together?

is it possible for someone to give some pointers? thanks.

2. Hi, may be you can choose to see them separately and therefore imply that the infinite sets actually are composed of both increasing and decreasing series. Then both signs are indeed logical.

3. Hello,