Need solution
For the universal set T = {1, 2, 3, 4, 5} and its subset A ={2, 3} and B ={5, }
Find
i) A^{1}
ii) (A^{1})^{1}
iii) (B^{1})^{1}
Solution
i) A^{1} ={2, 3}^{1} = {1, 4, 5}
ii) (A1)^{1} =({2, 3}^{1})^{1} = {1, 4, 5}^{1}={2, 3} = A
iii) (B1)^{1}=({5}^{1})^{1} = {1, 2, 3, 4}^{1}={5} = B