Answer:
The union of two sets contains all the elements contained in either set (or both sets). The union is notated A ⋃ B. The intersection of two sets contains only the elements that are in both sets.
1. C U A= {6,7,10,1,2,3,11,16,4}
2. B U C= {1,2,3,6,7,10}
3. A U(upside-down) B= {1,2,3,7}
4. A U C= {1,2,3,6,7,10,11,16,4}
5. A U(upside-down) B= {1,2,3,7}
