名校
1 . 已知
,函数
.
(1)当
时,解不等式
.
(2)若关于
的方程
的解集中恰有一个元素,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bac434e7a860859b7ae4f1ccddf0c369.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3ab1020fceb1158042671bf33ea64d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-02-28更新
|
92次组卷
|
2卷引用:云南省昆明市官渡区第一中学2020-2021学年高一年级12月月考数学试题
名校
2 . 已知
,函数
.
(1)当
时,求不等式
的解集;
(2)若关于
的方程
的解集中恰有两个元素,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e83fb5cfd145d15daca04a90b53c76f.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e799e937076aa5a7dcd51cdc0f40f6b0.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c16bfc9f4f4f26fb63843c921959c601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-11-07更新
|
463次组卷
|
2卷引用:云南文山州马关县第一中学2019-2020学年高一上学期期末考试数学试题
解题方法
3 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3473c109ec4d71f833dad76eb5d145.png)
(1)若关于
的不等式
在
有实数解,求实数
的取值范围;
(2)设
,若关于
的方程
至少有一个解,求
的最小值.
(3)证明不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3473c109ec4d71f833dad76eb5d145.png)
(1)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfcbc3ffca28dadd8241999c35cb49c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb91e6d30e5e96f240b538c55aa1da9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed0a706f0f99690a25194a4586cea66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790b807c406d6f22dc559b1ec16f9356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(3)证明不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/688955342aa1c114d7fcc04618974410.png)
您最近一年使用:0次
名校
4 . 已知函数
,不等式
的解集为
,设
.
(1)若存在
,使不等式
成立,求实数
的取值范围;
(2)若方程
有三个不同的实数解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c0808cd203b6aa996e85d2ce843ffc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0527a896aec4a245945e5edee00deed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac55d420e554e9a8352c1523a3e0043e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3029a39fe6d67da0c12f68fd19e155.png)
(1)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c0c19ae1918729b016a978eebe64b72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09fa08ec15578dc4d8fb4712fdcdee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a127fd902fcae6a0d1c00dae3d48ed66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2020-09-01更新
|
686次组卷
|
4卷引用:云南省昆明市第三中学2020~2021高一上学期期末数学测试题
名校
解题方法
5 . 设O为坐标原点,定义非零向量
的“相伴函数”为
,
称为函数
的“相伴向量”.
(1)设函数
,求函数
的相伴向量
;
(2)记
的“相伴函数”为
,若方程
在区间
上有且仅有四个不同的实数解,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b84dac41f87e939f6cc39f38dc59b78d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0e4e35cf9b9f97c19e4b72cc2a1b09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b84dac41f87e939f6cc39f38dc59b78d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc54bc56c16baa3643686b85a6130e4.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15530d256df9ecf36c7476381c7ab3b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3fa5a2ec0f43acc49c5f7f848f212c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/227e04b76330c7bc1f7b62a1756cd5a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b604c6522119e77c1cb16b91532a2c1.png)
您最近一年使用:0次
2024-03-31更新
|
343次组卷
|
2卷引用:云南省下关第一中学2023-2024学年高一下学期5月期中考试数学试题
6 . 已知函数
对一切实数
,都有
成立,且
,
其中
.
(1)求
的解析式;
(2)若关于x的方程
有三个不同的实数解,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587d3909a3d586e11cd3e902066976d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80fae86b38bf45a6ddf9986a7ce6b2a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7220590606af8fd2cce75eb84d720ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac1b64cb76717bd87cd068fbaf1cf6c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fdc09bc9e98f39d2019c114ee666b10.png)
您最近一年使用:0次
名校
7 . 已知函数
.
(1)若
在
上恒成立,求
的取值范围;
(2)若方程
在
上有两个解,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68cf039a7641a74a604cfad0f2fc08fc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a73db674d29eae8f8921eff5944983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ca681ae72055316ef35c01fdb27034.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-02-25更新
|
346次组卷
|
4卷引用:云南省下关第一中学2023-2024学年高一下学期5月期中考试数学试题
云南省下关第一中学2023-2024学年高一下学期5月期中考试数学试题1号卷·A10联盟2022届全国高考第一轮总复习试卷数学(理科)试题(十二)(已下线)考点8 一元二次方程、不等式 --2024届高考数学考点总动员【练】(已下线)第24题 零点个数与范围,数形结合双翼飞(优质好题一题多解)
名校
解题方法
8 . 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)
您最近一年使用:0次
2023-12-09更新
|
186次组卷
|
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
9 . 已知函数
是偶函数,且
,
.
(1)当
时,求函数
的值域;
(2)设
,求函数
的最小值
;
(3)设
,对于(2)中的
,是否存在实数
,使得方程
在
时有且只有一个解?若存在,求出实数
的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3067e2ce6964dd8a4657f33ff1020e42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7266302e4bcdec779069599b8a60819c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f76a0407dc64862b341524e8f3d7164.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59720e6b24607644cc42a4575d1cb420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aeae227ddcd963101c96448b12a69d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f610b4db18f28c65bcac27b5e8e3685.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65f98fb31af1299a4d4b31d67a240b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2023-11-13更新
|
300次组卷
|
2卷引用:云南省昆明市师大附中官渡一中迪庆一中三校联考2023-2024学年高一上学期期中数学试题
10 . 已知函数
+
.
(1)当x∈
时,求
的值域;
(2)若x∈
时,方程
=m恰有两个不同的解,求实数m取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58df5d3d48b4168fb115f0d24a5f3c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f84a25527e54ee2614e3b5e99ef8a3d4.png)
(1)当x∈
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d51992c05a557cf6058664f1f8961e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若x∈
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c6c37ce441a8ed77c8e3953e8fe1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db9290db80f020070aeb717bd5320899.png)
您最近一年使用:0次