名校
解题方法
1 . 已知函数
则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80bd66e8120f54146ac8c98d881f4eff.png)
A.函数![]() |
B.函数![]() |
C.当![]() |
D.若点![]() ![]() ![]() ![]() |
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2022-01-26更新
|
474次组卷
|
3卷引用:浙江省衢温“5+1”联盟2021-2022学年高二上学期期末联考数学试题
名校
2 . 已知函数
,下面有四个结论:
①当
时,
在
上单调递减;
②若函数
恰有2个零点,则
的取值范围是
;
③若函数
无最小值,则
的取值范围是
;
④若方程
有三个实数根
,其中
,则不存在实数
,使得
.
其中所有正确结论的序号是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab372dbf80b1da96e2850e6def3827a.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e10140ab3cdc13d710a65b2287c892b.png)
②若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/189b2da6c420bf8f8900002d14f65f72.png)
③若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b61bb7cb94b4d06f0090df1e365667.png)
④若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5809a06357f94fc7a2156c7e7af1ed2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e25ddc1be7a3492b844036076b114fc5.png)
其中所有正确结论的序号是
您最近一年使用:0次
2021-12-12更新
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664次组卷
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3卷引用:甘肃省甘南藏族自治州第二中学2022-2023学年高二上学期期末数学试题
名校
解题方法
3 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a296c144fc9626f81ae59d6dc1d6a80.png)
的图像;
(2)求
;
(3)求方程
的解集,并说明当整数
在何范围时,
.有且仅有一解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a296c144fc9626f81ae59d6dc1d6a80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/981db5e1425f4510580273488f6e1fd0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/549f9c4a708ba21ecadd712e2df626a4.png)
(3)求方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b7bff9b2431134f7683a9cc4e68acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb291880ef86317d079c0e0b349403e5.png)
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2023-12-09更新
|
190次组卷
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6卷引用:云南省曲靖市马龙区第一中学2023-2024学年高一上学期期末考试数学试题
名校
4 . 已知函数
的定义域为
,如果存在
,使得
,则称
为
的一阶不动点;如果存在
,使得
,且
,则称
为
的二阶周期点.
(1)分别判断函数
与
是否存在一阶不动点;(只需写出结论)
(2)求
的一阶不动点;
(3)求
的二阶周期点的个数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3102c0a2f53b80f9dddbf9352537e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f66a2b3d90f0d935d6c8ebaf675349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3102c0a2f53b80f9dddbf9352537e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374054f44b9a52668f91ac7601e63c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f780e2f4ee87accd7a7fbceddf88d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(1)分别判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b161347f6a2fcfd9bf0acf1e8a03fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef469c7b7cb9945b984222381b9c000.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88333244b5dfc4ac0b1b279a2f7aac81.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95df41ae9c76a6334e87e9efe8ab6e6d.png)
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2022-01-13更新
|
390次组卷
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2卷引用:北京市昌平区2021-2022学年高一上学期期末质量抽测数学试题
5 . 已知函数
且
在
上为单调函数,
,
,则下列结论错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/542fa81d7f050c63d920f887d6ed7182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fa1476cf3552b9ae91ef039b1c6c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae722c6262bb9f6c07d0dfaa6087394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad867ba5b2098869ad99be877ffbfbc0.png)
A.实数![]() ![]() |
B.存在![]() ![]() ![]() |
C.函数![]() ![]() ![]() |
D.函数![]() ![]() ![]() |
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