10.已知函數(shù)y=f (x)的圖象與函數(shù)y=ax(a>0且a≠1)的圖象關(guān)于直線y=x對(duì)稱(chēng).記g(x)=f (x)[f (x)+f (2)-1].若y=g(x)在區(qū)間[.2]上是增函數(shù).則實(shí)數(shù)a的取值范圍是 A.. B. C. D. 查看更多

 

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已知函數(shù)y=f(x)的圖象與函數(shù)y=ex-1(x∈R)的圖象關(guān)于直線y=x對(duì)稱(chēng),則y=f(x)x的解析式為


  1. A.
    f(x)=lnx-1(x>0)
  2. B.
    f(x)=lnx+1(x>0)
  3. C.
    f(x)=lnx-1(x>1)
  4. D.
    f(x)=lnx+1(x>1)

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已知函數(shù)y=f(x)的圖象與函數(shù)y=log3(x-1)+9的圖象關(guān)于直線y=x對(duì)稱(chēng),則f(10)的值是


  1. A.
    11
  2. B.
    12
  3. C.
    2
  4. D.
    4

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已知函數(shù)y=f(x)的圖象與函數(shù)y=ax(a>0且a≠1)的圖象關(guān)于直線y=x對(duì)稱(chēng),記g(x)=f(x)[f(x)+2f(2)-1].若y=g(x)在區(qū)間上是增函數(shù),則實(shí)數(shù)a的取值范圍是

[  ]

A.[2,+∞)

B.(0,1)∪(1,2)

C.

D.

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已知函數(shù)y=f(x)的圖象與函數(shù)y=ax(a>0且a≠1)的圖象關(guān)于直線y=x對(duì)稱(chēng),記g(x)=f(x)[f(x)+f(2)-1].若y=g(x)在區(qū)間[,2]上是增函數(shù),則實(shí)數(shù)a的取值范圍是

[  ]
A.

[2,+∞)

B.

(0,1)∪(1,2)

C.

[,1)

D.

(0,]

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已知函數(shù)y=f(x)的圖象與函數(shù)y=ex-1(x∈R)的圖象關(guān)于直線y=x對(duì)稱(chēng),則y=f(x)x的解析式為

[  ]

A.f(x)=lnx-1(x>0)

B.f(x)=lnx+1(x>0)

C.f(x)=lnx-1(x>1)

D.f(x)=lnx+1(x>1)

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