高中数学代数与函数一函数练习题45
题目内容

已知函数y=f(x)在R上为奇函数,且当x http://picflow.koolearn.com/upload/2012-05/18/45dcb847-2b3d-448a-a9dd-add2741d0471/paper.files/image025.png0时,f(x)= http://picflow.koolearn.com/upload/2012-05/18/45dcb847-2b3d-448a-a9dd-add2741d0471/paper.files/image026.png-2x,则f(x)在 http://picflow.koolearn.com/upload/2012-05/18/45dcb847-2b3d-448a-a9dd-add2741d0471/paper.files/image027.png时的解析式是(  )

2021-07-26

A.f(x)=http://picflow.koolearn.com/upload/2012-05/18/45dcb847-2b3d-448a-a9dd-add2741d0471/paper.files/image026.png-2x

B.f(x)=http://picflow.koolearn.com/upload/2012-05/18/45dcb847-2b3d-448a-a9dd-add2741d0471/paper.files/image026.png+2x

C.f(x)= -http://picflow.koolearn.com/upload/2012-05/18/45dcb847-2b3d-448a-a9dd-add2741d0471/paper.files/image026.png+2x

D.f(x)= -http://picflow.koolearn.com/upload/2012-05/18/45dcb847-2b3d-448a-a9dd-add2741d0471/paper.files/image026.png-2x

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