Respuesta :

konrad509

If a set [tex]A[/tex] contains [tex]n[/tex] elements, then the number of subsets of this set is [tex]|\mathcal{P}(A)|=2^n[/tex].

[tex]A=\{4,5,6\}\\|A|=3[/tex]

[tex]|\mathcal{P}(A)|=2^3=8[/tex]

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