名校
1 . 已知
.
(1)求
的最小值
;
(2)已知
为正数,且
,求证
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c546a7c7f676569ce900731005ffbbb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc08705d52b248ee3e0ab9f4b381158.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd6979fc15213b3b1f507ccfb60d48a2.png)
您最近一年使用:0次
2019-09-14更新
|
496次组卷
|
6卷引用:2020届重庆市广益中学高三上期第一次月数学文科试题
名校
2 . 设函数
.
(1)若存在
,使得
,求实数
的取值范围;
(2)若
是(1)中的最大值,且正数
,
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55ab085ff06a309643102942fa31a637.png)
(1)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799b324b514d6044672c133d8fef2dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce5118394e703092a3ac1deb901eeeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab04de6651256f6281e9f4c1dc3c7955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deba97f507ced9a7884d4d5c855f4e3a.png)
您最近一年使用:0次
2019-05-19更新
|
1140次组卷
|
4卷引用:【全国百强校】重庆一中2019届高三下学期5月月考数学(理科)试题
名校
3 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4490503c29b1743ca34b05e900d8730.png)
(1)若
,
,求不等式
的解集;
(2)若
,
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4490503c29b1743ca34b05e900d8730.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab989f85a681b41c29465d4be74b789f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d665ed88614a7fb9c8d59fb6791c08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822336a13bee113f0e7dd34aeaf5357e.png)
您最近一年使用:0次
2019-05-07更新
|
790次组卷
|
6卷引用:重庆市巴蜀中学2019-2020学年高三下学期期中(线上)数学(理)试题
名校
4 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc7a637667f6caf3df83bd678f7566e.png)
(1)若
,求实数
的取值范围;
(2)证明:
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc7a637667f6caf3df83bd678f7566e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20deab0687c30926992e1c5c7b680a5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d274faf3f4704522d20b112b4ebfda05.png)
您最近一年使用:0次
2018-11-29更新
|
442次组卷
|
6卷引用:【全国百强校】重庆市第一中学2019届高三10月月考数学(理)试题
名校
5 . 已知函数
,其中
.
(1)当
时,求关于
的不等式
的解集;
(2)若对任意的
,都有
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35a819769ac87cfbfacf04675c0b69a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def3c397a80af1fa63dc68eae853201f.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a075dce77c9a6b964a8a3fc1ee6e8c.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec80634a6e2b2c85f845fa368b3a5969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ba8542fbe02e78cf3948c9abea9855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2018-06-01更新
|
153次组卷
|
2卷引用:【全国百强校】重庆市第一中学2017-2018学年高二下学期期中考试数学(文)试题
6 . 已知函数
.
(1)解不等式
;
(2)若对于任意
,有
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/036fd1de458f1b71cd921b4008e28733.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88049f536fe2df8b041f409bfda14a81.png)
(2)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/308fbd90b102bdc430883b817ab30e0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589c84f814be334de1af555428adb7a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b61adc4745f283e4072ddd762f92ffe.png)
您最近一年使用:0次
2018-01-19更新
|
406次组卷
|
3卷引用:重庆市九校联盟2018届高三上学期第一次联合考试数学(文)试题
7 . 已知函数
.
(1)若
的最小值为2,求
的值;
(2)若对
,
,使得不等式
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f64628280f10b667ff6de715a709fb15.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e5400e86839ef2d312eec0872c296f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e715522697da5c5dbacb9bd3f577b484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2017-04-15更新
|
784次组卷
|
3卷引用:2017届重庆市高三4月调研测试(二诊)数学文试卷