Write down all the subsets of the following sets : (i) {a} (b) {a, b} – InterviewSolution

InterviewSolution

1.	Write down all the subsets of the following sets : (i) {a} (b) {a, b} (c) `{1,2,3}` (d) `phi`
Answer» (i) Number of subsets of set `{a} = 2^(1) = 2` Subsets of `{a} = phi, {a}` (ii) Number of subsets of set `{a,b} = 2^(2)=4`. Subsets of set {a,b} are `phi, {a},{b},{a,b}` (iii) Number of subsets of set `{1,2,3} =2^(3)=8` Subsets of set `{1,2,3}` are `= phi, {1},{2},{3},{1,2},{2,3},{3,1},{1,2,3}` (iv) Number of subsets of set `phi = 2^(0)=1` which is `phi` itself Therefore, subsets of set `phi = phi`.

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