Problem 4. Consider the set A of years from 2005 to 2010 with 2000 and 2010 included. Find I1(A). Problem 5. Consider the set S which is the subset of A which is even years. Let the set T be the subset of A which is years that are dividable by 5. Find n(S), n(T) and n(S U T). Use a formula to nd n(S n T). Problem 6. Draw a general Venn diagram for the following set 3 H T