Solution:
we have, A = {1, {2,3}}
Number of element, A =2
Number of subsets of A =22 = 4
Let A = {1 {2, 3}}. Then, the number of subsets of A, is
Let A = {1 {2, 3}}. Then, the number of subsets of A, is
Let A = {1 {2, 3}}. Then, the number of subsets of A, is
we have, A = {1, {2,3}}
Number of element, A =2
Number of subsets of A =22 = 4
