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Two.

The set {x} has the subsets {} and {x}.

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Q: How many subsets does a set have if the set has one element?
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Related questions

How many subsets does a set of an elements have?

An element doesn't have subsets. Sets can have subsets.


How many subsets does a set N element have?

A set with N elements has 2N subsets.


How many subsets of n number element of set A?

We do not know what is in set A.


How many two elements subsets does a 4 element set have?

6


What are the subsets of number 8?

The number 8 is not a set and so cannot have any subsets. The set consisting of the number 8 is a set and, since it has only one element in it, it has two subsets: itself and the null set.


How many subsets in an empty set?

The empty set has only one subset: itself. It has no proper subsets.


How many subsets does set A have if the set A has 3 elements?

In a subset each element of the original may or may not appear - a choice of 2 for each element; thus for 3 elements there are 2 × 2 × 2 = 2³ = 8 possible subsets.


How many proper subsets does a set with four elements have?

A set with n elements has 2n subsets. The number of proper subsets is one less, since 2n includes the set itself.


How many subsets are in this set a b c d e f?

64. You can use Pascal's triangle to figure out how many subsets have no elements, one element, two elements and so on. For this particular one, you will have 6 subsets with one element, 15 with two, 20 with three, 15 with four, 6 with five and only one each of all six and none at all.


How many subsets does set a have if the set a has three elements?

8 subsets


What is the number of proper subsets for 16187191?

If you start with a set with only one element [16187191] then there can be only one proper subset: the empty set.


How do you determine the list of all the subsets of sets?

If a set has N elements then it has 2N subsets. So you can see that a list of all subsets soon becomes a very big task. For reasonably small values of N, one way to generate all subsets is to list the binary numbers from 0 to 2N. Then, each of these represents a subset of the original set. If the nth digit is 0 then the nth element is not in the set and if the nth digit is 1 then the nth element is in the set. That will generate all the subsets.