Respuesta: - 9
Propiedad:
[tex]a^{-1} = \frac{1}{a}[/tex]
Aplicamos:
[tex](-\frac{1}{9} )^{-1} = \frac{-9}{1} = -9[/tex]
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Respuesta: - 9
Propiedad:
[tex]a^{-1} = \frac{1}{a}[/tex]
Aplicamos:
[tex](-\frac{1}{9} )^{-1} = \frac{-9}{1} = -9[/tex]