定義:若函數(shù)f(x)的圖象經(jīng)過變換T后所得圖象對應(yīng)的函數(shù)與f(x)的值域相同,則稱變換T是f(x)的同值變換.下面給出了四個(gè)函數(shù)與對應(yīng)的變換:
(1)f(x)=(x-1)
2,T
1將函數(shù)f(x)的圖象關(guān)于y軸對稱;
(2)f(x)=2
x-1-1,T
2將函數(shù)f(x)的圖象關(guān)于x軸對稱;
(3)f(x)=
,T
3將函數(shù)f(x)的圖象關(guān)于點(diǎn)(-1,1)對稱;
(4)f(x)=sin(x+
),T
4將函數(shù)f(x)的圖象關(guān)于點(diǎn)(-1,0)對稱.
其中T是f(x)的同值變換的有
(1)(3)(4)
(1)(3)(4)
.(寫出所有符合題意的序號)