List all the subsets of the set –1, 0, 1 - Vidyadip

Question

List all the subsets of the set { –1, 0, 1}

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Answer

Suppose A = { –1, 0, 1}.
Now, we have to calculate all the subset of A having no element is the empty set $\phi$.
The subsets of A having one element are { –1}, {0}, {1}.
The subsets of
A having two elements are {–1, 0}, {–1, 1} ,{0, 1}.
The subset of A having threeelements of A is A itself.
Therefore, all the subsets of A are $\phi$, {–1}, {0}, {1}, {–1, 0}, {–1, 1}, {0, 1} and {–1, 0, 1}

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