Q10 of 145 Page 47

If A = {5, 6, 7}, find P(A).

A = {5, 6, 7}


We have to find P(A) which is power set of A


The power set of set A is collection of all possible subsets of A


The possible subsets of A are {ϕ}, {5}, {6}, {7}, {5,6}, {5,7}, {6, 7}, {5, 6, 7}


Hence the power set P(A) will be


P(A) = {{ϕ}, {5}, {6}, {7}, {5,6}, {5,7}, {6, 7}, {5, 6, 7}}


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