Lista de exercícios do ensino médio para impressão

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If A is a set with 5 elements, how many are the subsets of A ?

answer:# If A contains k elements, so there are 2^{k} subsets of A.

Solution:

n(A) = 5 ⇒ n[P(A)] = 2^{5} = 32. The subsets of A are 32 subsets

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answer:

n(A) = 5 ⇒ n[P(A)] = 2

Obs.: n[P(A)] means number of parts of A or number of subsets of A.

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