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  • If a set A has 8 elements, How many subsets class A have?

If a set A has 8 elements, How many subsets class A have?

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Let A and B be two sets if A \subset B and A \neq B. Then A is a proper subset of B

A set with n elements has 2^{n}-1 subsets

So, 28 - 1 = 256 -1

                = 255 subsets

 

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