高中数学代数与函数一函数练习题48
题目内容

下列函数中,最小正周期为 http://picflow.koolearn.com/upload/2014-01/20/17e3fd2c-0b01-491d-b776-efe68c762e34/paper.files/image123.png的偶函数为(    )

2021-07-28

A.http://picflow.koolearn.com/upload/2014-01/20/17e3fd2c-0b01-491d-b776-efe68c762e34/paper.files/image152.png

B.http://picflow.koolearn.com/upload/2014-01/20/17e3fd2c-0b01-491d-b776-efe68c762e34/paper.files/image153.png

C.http://picflow.koolearn.com/upload/2014-01/20/17e3fd2c-0b01-491d-b776-efe68c762e34/paper.files/image154.png

D.http://picflow.koolearn.com/upload/2014-01/20/17e3fd2c-0b01-491d-b776-efe68c762e34/paper.files/image155.png

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