名校
1 . 已知函数
.
(1)若
,求
的值;
(2)若
,用函数单调性定义证明
在
上单调递减;
(3)设
,若方程
在
上有唯一实数解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1d09168c3b90d6da2eccc0bf347f59e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc04702be4996e6b89b656f5a7fc8b8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/189b2da6c420bf8f8900002d14f65f72.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a47ac48e9c15189074604656c7fe180.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86eff5761f61a20c240a428f2a7ceda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2022-01-03更新
|
459次组卷
|
6卷引用:江苏省苏州市第十中学2020-2021学年高二下学期5月月考数学试题
名校
2 . 已知函数
.
(1)当
时,求函数
的极小值;
(2)若函数
在
有
个零点,求实数
的取值范围;
(3)在(2)的条件下,若函数
在
的三个零点分别为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e081f71a5850c46eda3efb62e53391c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51e2b8f615b2cc7eca7fda25efb507d.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/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)在(2)的条件下,若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fd2c5760181b2c974811564b55b65f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7334919736e5ed881f691e4ca738b4ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e49909f4435d16286a2fe1bd580b0d1.png)
您最近一年使用:0次
12-13高二下·四川·阶段练习
3 . 已知函数
.
(1)求
的单调区间;
(2)当
时,判断
和
的大小,并说明理由;
(3)求证:当
时,关于
的方程:
在区间
上总有两个不同的解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c599bf5af19e4603956e98c5650dbd4f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17988cb33273869bda17fa256f968230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4886e28e9ecd40f7edd25f25bde28453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2709ca478fb15ea08e8aa55328eae8e6.png)
(3)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ccc2e60c40781eca527195c5a721169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a00be02f89bb28b54fadb4e0c27e13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae3777d65a4e4a642c6772a1870c8b9.png)
您最近一年使用:0次
4 . 已知函数
,设方程
有两个实数根![](https://img.xkw.com/dksih/QBM/2015/7/7/1572170399768576/1572170405224448/STEM/290d68fa6fc34154a852eaa355ce97ea.png)
(1)若果
,设函数
的对称轴为
,求证:![](https://img.xkw.com/dksih/QBM/2015/7/7/1572170399768576/1572170405224448/STEM/5b1b736a636341bda77cbb4eaaf6166b.png)
(2)如果
的两个实数根相差2,求实数b的取值范围.
![](https://img.xkw.com/dksih/QBM/2015/7/7/1572170399768576/1572170405224448/STEM/8f6150df88c9402b95260a44c8bf9e8e.png)
![](https://img.xkw.com/dksih/QBM/2015/7/7/1572170399768576/1572170405224448/STEM/9c6422460aee49e2b5a4a6db963e847f.png)
![](https://img.xkw.com/dksih/QBM/2015/7/7/1572170399768576/1572170405224448/STEM/290d68fa6fc34154a852eaa355ce97ea.png)
(1)若果
![](https://img.xkw.com/dksih/QBM/2015/7/7/1572170399768576/1572170405224448/STEM/72eb63c5d5074ed4ac1484dba3a856f8.png)
![](https://img.xkw.com/dksih/QBM/2015/7/7/1572170399768576/1572170405224448/STEM/17f389f385124b53baae9d886a949bcf.png)
![](https://img.xkw.com/dksih/QBM/2015/7/7/1572170399768576/1572170405224448/STEM/6a2161feb03541369a1f10917ddb891f.png)
![](https://img.xkw.com/dksih/QBM/2015/7/7/1572170399768576/1572170405224448/STEM/5b1b736a636341bda77cbb4eaaf6166b.png)
(2)如果
![](https://img.xkw.com/dksih/QBM/2015/7/7/1572170399768576/1572170405224448/STEM/d1d2ec34ca2e43c4a623dd817b2b91e6.png)
您最近一年使用:0次
2016-12-03更新
|
431次组卷
|
2卷引用:2014-2015学年浙江省江山实验中学高二4月教学质检理科数学试卷
5 . 设二次函数
,方程
的两个根
满足
.
(1)当
时,证明:
;
(2)设函数
的图象关于直线
对称,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ee0bd8a541d6c1057325f7f4287a64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ce1d0d23531eba7c795b2f53a5b280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57cfda1c04b6eaeb5e78018539c2880e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/654999361ddc18f7330b36a535c99c9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf85fac81ccb29ad30c0aeb09620f42e.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0178cdfe12c03ce5b50378c71471035.png)
您最近一年使用:0次
2017-03-01更新
|
1584次组卷
|
5卷引用:2015-2016学年四川省雅安中学高二10月月考数学试卷
6 . 已知
是奇函数.
(1)求
的值;
(2)判断并证明
在
上的单调性;
(3)若关于
的方程
在
上有解,求
的取值范围.
![](https://img.xkw.com/dksih/QBM/2015/6/3/1572118618415104/1572118623821824/STEM/982f9a874d0c425c87bc2394c51ad329.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2015/6/3/1572118618415104/1572118623821824/STEM/8921943739f946579d09d0438d864746.png)
(2)判断并证明
![](https://img.xkw.com/dksih/QBM/2015/6/3/1572118618415104/1572118623821824/STEM/13cce79af2d94599895a594014fdbc14.png)
![](https://img.xkw.com/dksih/QBM/2015/6/3/1572118618415104/1572118623821824/STEM/d7b86765ebc34a54aaec9551cbf57f47.png)
(3)若关于
![](https://img.xkw.com/dksih/QBM/2015/6/3/1572118618415104/1572118623821824/STEM/3aade5ac34e140308a689a4d904d7b23.png)
![](https://img.xkw.com/dksih/QBM/2015/6/3/1572118618415104/1572118623821824/STEM/2625b3984f0241fca4d8dbef2126a2e8.png)
![](https://img.xkw.com/dksih/QBM/2015/6/3/1572118618415104/1572118623821824/STEM/2aa5099457fc4cdf99a2572fbbc3458e.png)
![](https://img.xkw.com/dksih/QBM/2015/6/3/1572118618415104/1572118623821824/STEM/46c32d4a6f064120b0a244665454dc1a.png)
您最近一年使用:0次
2016-12-03更新
|
1474次组卷
|
2卷引用:2014-2015学年浙江台州书生中学高二下学期第一次月考理科数学试卷
名校
7 . 已知二次函数
的图像与
轴有两个不同的交点,若
,且
时,
.
(1)证明:
是函数
的一个零点;
(2)试用反证法证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e194ce7e07f71a0eac5a69ac0afa94ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e482179d02f958a33a69e2b422b80ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f14e418ec83003aa9f74b81a388c0056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9cbfbe6ea4ccb03bcc6c8cb0bd025a5.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc8c89876347be5c160b7f117c923ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
(2)试用反证法证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e5c75e6b2bade28bca1dac24481d31e.png)
您最近一年使用:0次
2018-06-24更新
|
456次组卷
|
3卷引用:广东省佛山市第三中学2018-2019学年第二学期第一次段考高二理科数学试题