Question

hola alguien sabe como es el desarrollo

Answer 1

Respuesta:

F = -2

Explicación paso a paso:

$F = \frac{\frac{x-1-1}{x-1} }{\frac{x+2-1}{x+2} }$

$F = \frac{x-2}{x-1} .\frac{x+2}{x+1}$

$F=\frac{\sqrt{2}-2 }{\sqrt{2}-1 }.\frac{\sqrt{2} +2}{\sqrt{2}+1 }$

$F=\frac{(\sqrt{2}) ^{2}-2^{2} }{(\sqrt{2}) ^{2}-1^{2} }$

$F=\frac{2-4}{2-1} \\F=-2$

Answer 2

Respuesta:

F = -2

Explicación paso a paso:

F = $\frac{1-\frac{1}{\sqrt{2}-1}}{1-\frac{1}{\sqrt{2}+2}}$

F = $\frac{1-\frac{1}{\sqrt{2}-1}}{\frac{1}{\sqrt{2}}}$

F = $\frac{-\sqrt{2}}{\frac{1}{\sqrt{2}}}$

F  = $-\frac{\sqrt{2}\sqrt{2}}{1}$

F = $-\sqrt{2}\sqrt{2}$

F = -2