Question

10. Write all the subsets of A = {1,2,3).​

Answer 1

Answer:

we know, if two set e.g., A and B are given and we can say  only when all elements of set A are elements of set B.

now, if we have to write all the subsets of tbe given set A. then first of all, you should find out total number of subset can be possible of set A. for example if A = {a, b, c} then, number of elements in A = 3 so, total number of subsets = 2³ = 8

and e.g., ,{a}, {b}, {c}, {a, b}, {a, c}, {b, c} , {a, b, c}.

given set : {1, 2, 3}

number of elements in set = 3

total number of subsets are given set = 2³ = 8

therefore, subsets are , {1}, {2}, {3}, {1,2}, {1, 3}, {2, 3}, {1,2,3}.

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