give-A-a-b-c-d-e-n-p-A-

Question Number 117567 by bounhome last updated on 12/Oct/20

g i v e A = {a, b, c, d, e}; n (p (A)) = ?

Answered by mr W last updated on 12/Oct/20

C_{0}^{5} + C_{1}^{5} + C_{2}^{5} + C_{3}^{5} + C_{4}^{5} + C_{5}^{5} = 2^{5} = 32

\Rightarrow n (p (A)) = 32

Commented by bounhome last updated on 13/Oct/20

a n d p (A) = ?

Commented by mr W last updated on 13/Oct/20

a l l 32 s u b s e t s o f A :

{0}

{a}, {b}, \dots, {e}

{a, b}, {a, c}, \dots, {d, e}

\dots

{a, b, c, d, e}

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