... a) AB = {0;1;2 ;3; 4}, A\B = {3; 2}, B\A = {6; 9; 10} b) AB = {1;2 ;3} , A\B = {4; 5}, B\A = {6; 9} Baứi Tỡm A B, A B, A \ B, B \ A vi: a) A = [4; 4], B = [1; 7] b) A = [4; 2], B = (3; 7] c) A = ... 2], B = (3; 7) d) A = (; 2], B = [3; +) e) A = [3; +), B = (0; 4) f) A = (1; 4), B = (2; 6) Baứi 10 Tỡm A B C, A B C vi: a) A = [1; 4], B = (2; 6), C = (1; 2) b) A = (; 2], B = [3; +), C ... trng cho cỏc phn t ca nú: A = { 0; 1; 2; 3; 4} B = { 0; 4; 8; 12; 16} C = { ; 9; 27; 81} G = { x N x < 5} D = { 9; 36 ; 81; 144} E = { 2 ,3, 5,7,11} F = { 3, 6,9,12,15} G = Tp tt c cỏc im thuc ng...