12.對(duì)于定義在R上的函數(shù).有下述四個(gè)命題.其中正確命題為( ) ①若是奇函數(shù).則的圖象關(guān)于點(diǎn)A(1.0)對(duì)稱, ②若對(duì)x∈R.有.則的圖象關(guān)于直線對(duì)稱, ③若函數(shù)的圖象關(guān)于直線對(duì)稱.則為偶函數(shù), ④函數(shù)與函數(shù)的圖象關(guān)于直線對(duì)稱. A.①②④ B.②④ C.①③ D.①③④ 查看更多

 

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對(duì)于定義在R上的函數(shù),有下述四個(gè)命題,其中正確命題為(  )
①若函數(shù)是奇函數(shù),則的圖象關(guān)于點(diǎn)A(1,0)對(duì)稱;   
②若對(duì)x∈R,有,則的圖象關(guān)于直線對(duì)稱;      
③若函數(shù)為偶函數(shù),則的圖象關(guān)于直線對(duì)稱;
④函數(shù)與函數(shù)的圖象關(guān)于直線對(duì)稱。
A. ①②④          B. ①③④           C. ②④         D. ①③   

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對(duì)于定義在R上的函數(shù),有下述四個(gè)命題,其中正確命題為(  )
①若函數(shù)是奇函數(shù),則的圖象關(guān)于點(diǎn)A(1,0)對(duì)稱;   
②若對(duì)x∈R,有,則的圖象關(guān)于直線對(duì)稱;      
③若函數(shù)為偶函數(shù),則的圖象關(guān)于直線對(duì)稱;
④函數(shù)與函數(shù)的圖象關(guān)于直線對(duì)稱。
A. ①②④          B. ①③④           C. ②④         D. ①③   

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對(duì)于定義在R上的函數(shù)f(x),有下述四個(gè)命題;
①若f(x)是奇函數(shù),則f(x-1)的圖象關(guān)于點(diǎn)A(1,0)對(duì)稱;
②若對(duì)x∈R,有f(x+1)=f(x-1),則y=f(x)的圖象關(guān)于直線x=1對(duì)稱;
③若函數(shù)f(x-1)的圖象關(guān)于直線x=1對(duì)稱,則f(x)為偶函數(shù);
④函數(shù)y=f(1+x)與函數(shù)y=f(1-x)的圖象關(guān)于直線x=1對(duì)稱.
其中正確命題為
①③
①③

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對(duì)于定義在R上的函數(shù)f(x),有下述四個(gè)命題:

①若f(x)是奇函數(shù),則f(x-1)的圖像關(guān)于點(diǎn)A(1,0)對(duì)稱;

②若對(duì)于任意x∈R,有f(x+1)=f(x-1),則函數(shù)f(x)的圖像關(guān)于直線x=1對(duì)稱;

③若函數(shù)f(x-1)的圖像關(guān)于直線x=1對(duì)稱,則f(x)為偶函數(shù);

④函數(shù)y=f(1+x)與函數(shù)y=f(1-x)的圖像關(guān)于直線x=1對(duì)稱.

其中正確命題的序號(hào)為__________.(把你認(rèn)為正確命題的序號(hào)都填上)

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對(duì)于定義在R上的函數(shù)f(x),有下述四個(gè)命題;
①若f(x)是奇函數(shù),則f(x-1)的圖象關(guān)于點(diǎn)A(1,0)對(duì)稱;
②若對(duì)x∈R,有f(x+1)=f(x-1),則y=f(x)的圖象關(guān)于直線x=1對(duì)稱;
③若函數(shù)f(x-1)的圖象關(guān)于直線x=1對(duì)稱,則f(x)為偶函數(shù);
④函數(shù)y=f(1+x)與函數(shù)y=f(1-x)的圖象關(guān)于直線x=1對(duì)稱.
其中正確命題為______.

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