MatemáticasBásico1 respuestas

Hallar f(x) si f(x + 1 / x) = x ^ 2 + 1 / (x ^ 2) ; (IxI es mayor o igual a 2) res urgente?

Hallar f(x) si f(x + 1 / x) = x ^ 2 + 1 / (x ^ 2) ; (IxI es mayor o igual a 2) res urgente.

En resumen

F(x) = f ( <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%2B1%7D%7B2%7D%20" /> ) = <img src="https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%2B%20%5Cfrac%7B1%7D%7B%20x%5E%7B2%7D%20%7D%20" /> - - - - >f(<img src="https://tex.z-dn.net/?

Mejor respuesta

Miquione
7

F(x) =

f ( <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%2B1%7D%7B2%7D%20" /> ) = <img src="https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%2B%20%5Cfrac%7B1%7D%7B%20x%5E%7B2%7D%20%7D%20" /> - - - - >f(<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%2B1%7D%7B2%7D%20" />)(x) = <img src="https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%2B%20%5Cfrac%7B1%7D%7B%20x%5E%7B2%7D%20%7D%20" /> (x) f (x + 1) + ( - 1) = [ ( <img src="https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%2B%20%5Cfrac%7B1%7D%7B%20x%5E%7B2%7D%20%7D%20" />) (x)] + ( - 1) f (x) = <img src="https://tex.z-dn.net/?f=%28%20x%5E%7B3%7D%20%2B%20%5Cfrac%7B1%7D%7Bx%7D%20%29-1%0A" />

Dato x mayor igual que dos, entonces

x = 2, 3, 4, 5, 6, 7.

Podemos remplazar.