Question

Dados los conjuntos:

U = {1; 2; 3; 4; 5; 6; 7; 8; 9; 10}
A = {x / x ∈ N; 4 < x < 9}
B = {x / x ∈ N; 3 < x < 8}
Hallar la suma de los elementos de A’ ∩ B’.

a) 12 b) 14
c) 10 d) 25
e) 7

Answer 1

Respuesta:

d) 25

Explicación paso a paso:

U = {1; 2; 3; 4; 5; 6; 7; 8; 9; 10}

A = {x / x ∈ N; 4 < x < 9}

A = {5; 6; 7; 8}

A’= {1; 2; 3; 4; 9; 10}

B = {x / x ∈ N; 3 < x < 8}

B = {4; 5; 6; 7}

B’= {1; 2; 3; 8; 9; 10}

A’ ∩ B’

{1; 2; 3; 4; 9; 10} ∩ {1; 2; 3; 8; 9; 10}

-->1; 2; 3; 9; 10

RPTA: 1+2+3+9+10= 25