Question

5. Prove that the following pairs of sets are disjoint (by Venn diagrams)
(i) A-B and B-A (i) A intersection B and A-B (iii) A intersection B and B-A​

Answer 1

Answer:

Thus, A = {1, 2, 3} and B = {5, 7, 9} are disjoint sets; but the sets C = {3, 5, 7} and D = {7, 9, 11} are not disjoint; for, 7 is the common element of A and B.