1 . 已知函数
,
为偶函数,且当
时,
,记函数
,给出下列四个结论:
①当
时,
在区间
上单调递增;
②当
时,
是偶函数;
③当
时,
有3个零点;
④当
时,对任意
,都有
.
其中所有正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda5ab0495110870938c761638ae6ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fed62208af6047cd1374c6db9d21e8c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a3bc841b0c96fada3e4f8ca5f1396f.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c787b3ae93138bac7485c406d29f94b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5069fb2cd95b9595065b4294e308322.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bd2215e5cdeb3f6b0b7929a4a05ba65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c787b3ae93138bac7485c406d29f94b1.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a915c1a8a9304aeb307d130faaeb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c787b3ae93138bac7485c406d29f94b1.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6163bf8b74410bfb93919ec5130795ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/078f88a148727f0bba99fde30d056d03.png)
其中所有正确结论的序号是
您最近一年使用:0次
解题方法
2 . 已知函数
的图象如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/baf39a53-bdb8-4e81-86d0-1b0f7e835648.png?resizew=179)
(1)函数
的图象的序号是___________;
的图象的序号是___________;
(2)在同一直角坐标系中,利用已有图象画出
的图象,直接写出关于x的方程
在
中解的个数;
(3)分别描述这三个函数增长的特点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19132fdef07079a369d0c8a9222115a1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/baf39a53-bdb8-4e81-86d0-1b0f7e835648.png?resizew=179)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da53929a8f67b9aa3827fdbd73ebd265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82869dad28f771d088772a2c2b08b187.png)
(2)在同一直角坐标系中,利用已有图象画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c94b6118b49c95ac4eebd76ee5892e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9586aa9b985927df1ff1cfcd11666841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cbdf18d833a156104a3beb25fc8a76a.png)
(3)分别描述这三个函数增长的特点.
您最近一年使用:0次
2023-01-04更新
|
231次组卷
|
3卷引用:北京市大兴区2022-2023学年高一上学期期末考试数学试题