Tutorial Exercise Find the union and the intersection for the pair of sets. C = {11, 17, 18, 23} D = {11, 13, 14, 16, 19, 21, 22} Step 1 For two sets A and B, the union of A and B is written A U B and is the set of all elements that are in sets A or B or that are in both A and B. To sets below. C = {11, 17, 18, 23} D = {11, 13, 14, 16, 19, 21, 22)[ The union is every element in sets C and D combined, Complete the combination of sets C and D below. CUD = {11, 17, 18, 23, 11, 13 13 , 14, 16, 19, 21, 22} Step 2 Using combination of sets C and D determined in the previous step, C U D = {11, 17, 18, 23, 11, 13, 14, 16, 19, 21, 22}, write the union of C ar a comma-separated list in set notation.) CUD = {11,17,18,23,11,13,14,16,19,21,22} X