高中数学代数与函数一函数练习题48
题目内容

已知函数 http://picflow.koolearn.com/upload/2013-12/30/b548ae7a-3c32-4740-98ca-fb562f80726d/paper.files/image047.png是偶函数,定义域为 http://picflow.koolearn.com/upload/2013-12/30/b548ae7a-3c32-4740-98ca-fb562f80726d/paper.files/image048.png,则 http://picflow.koolearn.com/upload/2013-12/30/b548ae7a-3c32-4740-98ca-fb562f80726d/paper.files/image049.png(   )

2021-07-28

A.http://picflow.koolearn.com/upload/2013-12/30/b548ae7a-3c32-4740-98ca-fb562f80726d/paper.files/image050.png

B.http://picflow.koolearn.com/upload/2013-12/30/b548ae7a-3c32-4740-98ca-fb562f80726d/paper.files/image051.png

C.1

D.-1

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