If a set A has n elements, then the total number of subsets of A is

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n²

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2ⁿ

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Solution

The correct option is C
2ⁿ

Number of subsets of A = $^{n} C_{0}$ + $^{n} C_{1}$ + .............+ $^{n} C_{n}$
= $2^{n}$

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