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Power Factor

The power set...

Question

The power set of set A = {1, 2} is ____________.

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Solution

Let A = {1, 2}
Then number of subject of A are 2²= 4
i.e. ϕ, {1}, {2}, {1, 2}
∴ P(A) = {{1}, {2}, ϕ, {1, 2}}
i.e P(A) = {ϕ, {1}, {2}, {1, 2}}

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