Problems 3-10
Draw a rectangle to represent the universe along with three interlocking sets, as shown
in Example 3. Next, take care about the order of operations:
Problems 3 and 4: parentheses first
Problems 5 and 6: complement first
Problems 7 and 8: parentheses first, then complement
Problem 9: parenthses first; then intersection; finally complement
Problem 10: parentheses first; that is, complement of B, then complement of C;
next intersection. Finish up with the complement of A, and finally the union.
Note: Homework Hints are given only for the levels 1 and 2 problems.