若指數(shù)函數(shù)y=f(x)的反函數(shù)的圖象經(jīng)過點(diǎn).則此指數(shù)函數(shù)為 (A) (B) (C) (D) 查看更多

 

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若指數(shù)函數(shù)y=f(x)的反函數(shù)的圖象經(jīng)過點(diǎn)(2,-1),則此指數(shù)函數(shù)為
 

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若指數(shù)函數(shù)y=f(x)的反函數(shù)的圖象經(jīng)過點(diǎn)(2,-1),則此指數(shù)函數(shù)為   

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若指數(shù)函數(shù)y=f(x)的反函數(shù)的圖象經(jīng)過點(diǎn)(2,-1),則此指數(shù)函數(shù)為   

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若指數(shù)函數(shù)y=f(x)的反函數(shù)的圖象經(jīng)過點(diǎn)(2,-1),則此指數(shù)函數(shù)為________.

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指數(shù)函數(shù)f(x)=ax的圖象過點(diǎn)(-3,8),若函數(shù)y=g(x)是f(x)的反函數(shù),則g(x)=(  )
   

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