名校
解题方法
1 . 已知函数
.
①
在
上单调递减,在
上单调递增;
②
在
上仅有一个零点;
③若关于
的方程
有两个实数解,则实数
的取值范围是
;
④
在
上有最大值
,无最小值.
上述说法正确的是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49cbbb902139ff3e824206fbe2d48700.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c0070f5fd205c3c48a41bd865a7049b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5e67f73f250e6f489520743d2c9346f.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
③若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec93779c14a46e64dc6dcc1473346f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f80d79370d6378bd8386e672d7ed63.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e085c6a795db05898bf95ccbe78216.png)
上述说法正确的是
您最近一年使用:0次
名校
解题方法
2 . 设函数
,其中
.
①若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e81166d3da75796b243ae7b5690e2c.png)
______ ;
②若函数
有两个零点,则a的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4893ed3c794d8b7ce428a6c05c7c6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e81166d3da75796b243ae7b5690e2c.png)
②若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff6447be6d6b71691c820af827cc016.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17e1bab294e299d6df888f148bb8a362.png)
_________ ;当方程
有且仅有3个不同的根时,实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e6385f461f40ef223400824d317d07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17e1bab294e299d6df888f148bb8a362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c342d52fc26cc550a45b80756903bee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-11-14更新
|
283次组卷
|
2卷引用:北京市东方德才学校2023-2024学年高一上学期12月月考数学试卷
名校
解题方法
4 . 已知函数
给出下列四个结论:
①若
有最小值,则
的取值范围是
;
②当
时,若
无实根,则
的取值范围是
;
③当
时,不等式
的解集为
;
④当
时,若存在
,满足
,则
.
其中,所有正确结论的序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff4e0cfa86f6d91ff0b3cdb3251393b.png)
①若
![](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/6c6cc71d0c988d725b25c55c2672919c.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976d18a5396ba232f0aa38d136f1d749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da1606791e5eeefbf298210543e01dd4.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e5bcfb3bafe8373dd907e0e55d08f8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168fef6477a494abceae56fb6c2e4c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b61bb7cb94b4d06f0090df1e365667.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339de01d9636343c484391b421c31301.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ec808ad60dbf016632ec816eaca1df.png)
其中,所有正确结论的序号为
您最近一年使用:0次
2023-11-02更新
|
824次组卷
|
5卷引用:北京市第一零一中学2024届高三上学期10月月考数学试题
23-24高三上·北京·阶段练习
名校
5 . 已知函数
.
①若
,则函数
的值域为________ ;
②若函数
有三个不同的零点,则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb73dcbd5c4f4622ed7a9bda1fc4540f.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
6 . 已知函数
,下列结论正确的有________ .
①对任意实数
,
不是单调函数;
②
的零点为0;
③若存在实数
使
有三个不同的解,则实数
的取值范围为
;
④存在实数
,使
有2个极值点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1bb352dc2fb915bae675c985d29e8e5.png)
①对任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
③若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df52d934120d01bb008ff93115f09d93.png)
④存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
名校
7 . 定义在
上的函数
满足
,且当
时,
.若方程
有四个不相等的实数根,则t的取值范围是________ ;这四个实数根的乘积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e8161191908c6301be4ef580e672be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94557045e4a148296a84ae44b143c37a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512065619eb9b48149bfeeb45f314464.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713e9efa35bd9d54d20fd8b63b186108.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976d18a5396ba232f0aa38d136f1d749.png)
您最近一年使用:0次
名校
8 . 已知
,函数
,当
时,不等式
的解集是________________ .若函数
恰有2个零点,则
的取值范围是________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b8e5990ef4ef314941a3154457a9d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1158df70ea7d665cd0a43fe98ba11375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500d68f2678989a5ce7431cfd51b019d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2023-09-09更新
|
221次组卷
|
3卷引用:北京市第八十中学2023-2024学年高三上学期10月月考数学试卷
名校
9 . 已知
,函数
,若存在三个互不相等的实数
,使得
成立,则a的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4839ac6dc86dd36b5e8c170902507c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5832a3ab995f6389801f51945dd9d348.png)
您最近一年使用:0次
2023-09-01更新
|
382次组卷
|
3卷引用:北京市东直门中学2024届高三上学期阶段检测(10月月考)数学试题
名校
10 . 已知函数
,
.
(1)写出一个
的值________ ,使得函数
在
上恰有两个零点;
(2)若
,
,使得
,则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a056750e923b469cc9be74aff248fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dce2bfe6e1fde9265d2a07c42bbdf58.png)
(1)写出一个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bccd6a6e85bdf500218a3e75b31f3c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650566b874adcfe4ed60c99eab3fbcca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7409b8e4b38636929d90f0ac54b2ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次