Respuesta :

Answer:

The positive integers are 8 and 4

Step-by-step explanation:

Let the bigger integer be x, and the smaller be y, then

[tex]x = 2y[/tex]

The difference of their reciprocals is 1/8.

[tex] \frac{1}{y} - \frac{1}{x} = \frac{1}{8} [/tex]

Multiply through the second equation by 8xy

[tex]8x - 8y = xy[/tex]

Substitute the first equation into this last equation:

[tex]8(2y) - 8y = 2y \times y[/tex]

[tex]16y - 8y = {2y}^{2} [/tex]

[tex]8y = 2{y}^{2} [/tex]

[tex]4y = {y}^{2} [/tex]

[tex] {y}^{2} - 4y = 0[/tex]

[tex]y(y - 4) = 0[/tex]

[tex]y = 0[/tex]

or

[tex]y = 4[/tex]

But y≠0, since division by zero is not defined.

Therefore y=4 and x=8