Question

write all subsets of A=(1,2,3) rami said no.of subsets of a 2n(A) do you agree with him. give reason
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Answer 1

Question:

write all subsets of A=(1,2,3) rami said no. of subsets of a 2n(A) do you agree with him. give reason

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Answer:

Let A={1,2,3}

Number of elements in A is 3

Hence n=3

Number of subsets of A=2ⁿ

where n is the number of elements of the set A

=2³   =8

The subsets of {1,2,3} are

ϕ,{1},{2},{3},{1,2},{2,3},{1,3} and {1,2,3}