高中数学代数与函数一函数练习题41
题目内容

对于定义在R上的函数 http://picflow.koolearn.com/upload/2014-10/14/bc639bbe-2469-47e6-9848-398d475dd30c/paper.files/image068.png,有下述命题: ①若 http://picflow.koolearn.com/upload/2014-10/14/bc639bbe-2469-47e6-9848-398d475dd30c/paper.files/image068.png是奇函数,则函数 http://picflow.koolearn.com/upload/2014-10/14/bc639bbe-2469-47e6-9848-398d475dd30c/paper.files/image069.png的图象关于点 http://picflow.koolearn.com/upload/2014-10/14/bc639bbe-2469-47e6-9848-398d475dd30c/paper.files/image070.png对称 ②若函数 http://picflow.koolearn.com/upload/2014-10/14/bc639bbe-2469-47e6-9848-398d475dd30c/paper.files/image069.png的图象关于直线 http://picflow.koolearn.com/upload/2014-10/14/bc639bbe-2469-47e6-9848-398d475dd30c/paper.files/image071.png对称,则函数 http://picflow.koolearn.com/upload/2014-10/14/bc639bbe-2469-47e6-9848-398d475dd30c/paper.files/image068.png为偶函数 ③若对 http://picflow.koolearn.com/upload/2014-10/14/bc639bbe-2469-47e6-9848-398d475dd30c/paper.files/image072.png,有 http://picflow.koolearn.com/upload/2014-10/14/bc639bbe-2469-47e6-9848-398d475dd30c/paper.files/image073.png,则函数 http://picflow.koolearn.com/upload/2014-10/14/bc639bbe-2469-47e6-9848-398d475dd30c/paper.files/image068.png为周期函数,且周期为2 ④函数 http://picflow.koolearn.com/upload/2014-10/14/bc639bbe-2469-47e6-9848-398d475dd30c/paper.files/image074.png的图象关于直线 http://picflow.koolearn.com/upload/2014-10/14/bc639bbe-2469-47e6-9848-398d475dd30c/paper.files/image075.png对称. 其中正确命题的个数是(   )

2021-07-26

A.1

B.2

C.3

D.4

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