1. 2. 3. 4. With S1 = {2, 3, 5, 7), S2-2, 4, 5, 8, 9), compute S1 x S2 and S2 x S1 (4 Points) For S = {2, 5, 6, 8} and T = {2, 4, 6, 8), compute lSn Tl+ |SUT (4 Points) Draw a picture of the graph with vertices fv1, v2, v3) and edges (v1, v1), (v1, v2), (v2, v3), (v2, v1), (v3, v3)]. (6 Points) Find a grammar for the language L = an, where n is even) (5 Points)