Question

please help on question 7,8,9 and 10

Answer 1

7. The union of two sets is a set that contains every element contained in either set.

Answer 2

8. The intersection of two sets is a set that contains the elements that both sets contain in common.

Answer 3

9. First find C'. C' is the complement of set C.
It is a set made up of all elements in the universal set that are not part of set C.
Then find the union of sets A and B. Then find the intersection of the resultant set above with C'.

Answer 4

10. Use again C' you found in 9.
Then do the intersection of sets B and C' first.
Finally, do the union of set A with the resultant set above.