Edwin P.

asked • 06/11/18

how many subsets does 6 have

How many subsets does the set {1, 2, 3} have?

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David W. answered • 06/11/18

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The null set, 3 sets of 1, two sets of 2, and one of all 3, so 7.
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Arturo O.

Shouldn't it be 3 subsets of 2?
 
{1,2}
{1,3}
{2.3}
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06/11/18

David W.

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Yes, thank you. There are 8 subsets.
 
{1},{2},{3},{1,2},{1,3},{2,3},{1,2,3} and the null set
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06/11/18

Arturo O.

 
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06/11/18

Arturo O.

You are welcome, David.
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06/11/18

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