名校
1 . 已知函数
是定义在
上的偶函数,且当
时,
.现已画出函数
在
轴左侧的图象,如图所示,根据图象:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/a7de6127-497f-40f0-99fc-facec36237a0.png?resizew=245)
(1)请将函数
的图象补充完整并写出该函数的增区间(不用证明).
(2)求函数
的解析式.
(3)若函数
,求函数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5397ee1eb6d157f6ec1e7a878f8d16e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/a7de6127-497f-40f0-99fc-facec36237a0.png?resizew=245)
(1)请将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921f931ead6e1356b5099388d879cf60.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921f931ead6e1356b5099388d879cf60.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa3a483dc97a3d2456644e6b88207c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
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2019-11-04更新
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364次组卷
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2卷引用:河南省周口市川汇区周口恒大中学2024届高三下学期4月期中数学试题