高中数学代数与函数一函数练习题45
题目内容

下列函数中, http://picflow.koolearn.com/upload/2012-07/03/7b722be1-3e97-458e-bb65-285daec2c3d8/paper.files/image009.png是偶函数的是(  )

2021-07-26

A.http://picflow.koolearn.com/upload/2012-07/03/7b722be1-3e97-458e-bb65-285daec2c3d8/paper.files/image010.png

B.http://picflow.koolearn.com/upload/2012-07/03/7b722be1-3e97-458e-bb65-285daec2c3d8/paper.files/image011.png

C.http://picflow.koolearn.com/upload/2012-07/03/7b722be1-3e97-458e-bb65-285daec2c3d8/paper.files/image012.png

D.http://picflow.koolearn.com/upload/2012-07/03/7b722be1-3e97-458e-bb65-285daec2c3d8/paper.files/image013.png

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