Question

ayudaaaa xfavooooor con resolución :'<​

Answer 1

Explicación:

A = (x^2 - 25) / (x - 5) = (x+5)(x-5) / (x-5) = x+5

Valores de "x" para "A": x = {1, 2, 3, 4, 5, 6}

Reemplazando "x" en "x+5":

A = {6, 7, 8, 9, 10, 11}

B = (3x + 1) / 2

Valores de "x" para "B": x = {-1, 0, 1, 2, 3, 4, 5, 6, 7, 8}

Reemplazando "x" en "(3x + 1) / 2":

B = {-1, 0.5, 2, 3.5, 5, 6.5, 8, 9.5, 11, 12.5}

Entonces:

(A ∆ B) = {6, 7, 9, 10} --> n(A ∆ B) = 4

(A n B) = {8, 11} --> n(A n B) = 2

Respuesta: 4 + 2 = 6