Discrete Mathematics

4. (6 points) Let A-(1, 3, 5, 7, 9), B = { 11, 12, 13, 14, 15, 16, 17, 18, 19, 20), C = {1,5, 10, 14, 18) Fill the blank with the appropriate symbol (either e, e, s, (a) A (d) , C (g) BC -_- A (m) AnB A (h) AUC B G) (11,14,18) BuC B (n) 0 0 (o) nB An (B\C) (p) AU AUO (e) 3 A (k) C) B CNA AUC (r) BA