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Write down the power set of A = {8, 9}.

{ϕ, {8}, {9}, {8, 9}}
{ϕ, {8}, {9}}
{ϕ, {8}, {9}, {8, 9}}
None of these

Correct Answer: {ϕ, {8}, {9}, {8, 9}}

Explanation:

NA

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