5.函數(shù)y=的反函數(shù)( ). (A)是奇函數(shù)且在上是減函數(shù) (B)是偶函數(shù)且在上是減函數(shù) (C)是奇函數(shù)且在上是增函數(shù) (D)是偶函數(shù)且在上是增函數(shù) 此題7班正答率80.0%,13班正答率97.7% 查看更多

 

題目列表(包括答案和解析)

函數(shù)y2x2x的反函數(shù)(   

A.是奇函數(shù),且在(0,+)上是減函數(shù)

B.是偶函數(shù),且在(0,+)上是減函數(shù)

C.是奇函數(shù),且在(0,+)上是增函數(shù)

D.是偶函數(shù),且在(0,+)上是增函數(shù)

查看答案和解析>>

函數(shù)y2x2x的反函數(shù)(   

A.是奇函數(shù),且在(0,+)上是減函數(shù)

B.是偶函數(shù),且在(0,+)上是減函數(shù)

C.是奇函數(shù),且在(0,+)上是增函數(shù)

D.是偶函數(shù),且在(0,+)上是增函數(shù)

查看答案和解析>>

對(duì)于函數(shù)y=f(x),有下列五個(gè)命題:

①若y=f(x)存在反函數(shù),且與反函數(shù)圖象有公共點(diǎn),則公共點(diǎn)一定在直線y=x上;

②若y=f(x)在R上有定義,則y=f(|x|)一定是偶函數(shù);

③若y=f(x)是偶函數(shù),且f(x)=0有解,則解的個(gè)數(shù)一定是偶數(shù);

④若T(T≠0)是函數(shù)y=f(x)的周期,則nT(n∈N),也是函數(shù)y=f(x)的周期;

⑤f(0)=0是函數(shù)y=f(x)為奇函數(shù)的充分不必要條件.

從中任意抽取一個(gè),恰好是真命題的概率為

[  ]
A.

B.

C.

D.

查看答案和解析>>

對(duì)于函數(shù)y=f(x),有下列五個(gè)命題:

①若y=f(x)存在反函數(shù),且與反函數(shù)圖象有公共點(diǎn),則公共點(diǎn)一定在直線y=x上;

②若y=f(x)在R上有定義,則y=f(|x|)一定是偶函數(shù);

③若y=f(x)是偶函數(shù),且f(x)=0有解,則解的個(gè)數(shù)一定是偶數(shù);

④若T(T≠0)是函數(shù)y=f(x)的周期,則nT(n∈N*),也是函數(shù)y=f(x)的周期;

⑤f(0)=0是函數(shù)y=f(x)為奇函數(shù)的充分不必要條件.

從中任意抽取一個(gè),恰好是真命題的概率為

[  ]
A.

B.

C.

D.

查看答案和解析>>


同步練習(xí)冊(cè)答案