名校
1 . 已知函数
.
(1)当
,求函数
的单调区间;
(2)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb54842c12061211b1721df0d9735639.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50ec20a5cbf05d92a8a51d56dd886135.png)
您最近一年使用:0次
2018-06-30更新
|
616次组卷
|
5卷引用:贵州省镇远县文德民族中学校2020-2021学年高二3月月考数学(文)试题
名校
2 . 已知函数
.
(1)当
时,求函数
的单调区间;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/415114a419c2e18239a51d47a8ebde0a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7bf74e4eb8ca4fa2829e4576e4023f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b15c5557add0fefe6adb90ea625668.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a52f51cacddca9a3f755829559c1bf3c.png)
您最近一年使用:0次
名校
3 . 已知函数
.(
是常数,且(
)
(Ⅰ)求函数
的单调区间;
(Ⅱ)当
在
处取得极值时,若关于
的方程
在
上恰有两个不相等的实数根,求实数
的取值范围;
(Ⅲ)求证:当
时
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d1a639296a915e708e66d3fe522ae0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae018fde08edf0539089f98c17e11ff7.png)
(Ⅰ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df9fef274943ea04963784506e7f386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679353e656a54993c041ebd39ec7b31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb28073ca65dfeacb3a00e414588a193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63fc2a57bfcfcd50f6bbda511d878057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(Ⅲ)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb97e953dc5b2c48e8bea608d4464987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa7ba44917866f38fdb73b5cf95f1af1.png)
您最近一年使用:0次
2018-05-07更新
|
994次组卷
|
2卷引用:【全国市级联考】贵州省贵阳市2018年高三适应性考试(二)(理数)
名校
解题方法
4 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acb7a9a20f1742372235700600c7862.png)
(Ⅰ)当
时,求函数
的单调递减区间;
(Ⅱ)若
时,关于
的不等式
恒成立,求实数
的取值范围;
(Ⅲ)若数列
满足
,
,记
的前
项和为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acb7a9a20f1742372235700600c7862.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca4be345087f993a4078e16c16608e2.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab42740d8f095b5f7825d14c4c312096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅲ)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8b0933a5e3b755d257e5d7216b77c63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced4e381e8c3336848b8c436dbc584f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f644ac3aaf5a4d9e4f6f551e54dfbbd.png)
您最近一年使用:0次
2018-04-05更新
|
700次组卷
|
3卷引用:贵州省凯里市第一中学2018届高三下学期《黄金卷》第二套模拟考试数学(文)试题
解题方法
5 . 函数
在点
处的切线方程为
.
(1)求实数
,
的值;
(2)求
的单调区间;
(3)
,
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4bef8a4250c65ebc3ee230e57a0a50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f6ed76662695d4c711be57a16c3197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc906b12f576e3ffc5e74d3d50c2bbac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de189088284dbed66a855af3deac6065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2018-03-08更新
|
577次组卷
|
3卷引用:贵州省黔东南州2018届高三第一次模拟考试数学(理)试题
名校
6 . 已知
.
(1)若方程
在
上有实数根,求实数
的取值范围;
(2)若
在
上的最小值为
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e20d1983b1b615b82eafa5d3598282.png)
(1)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/248244e7c172646584b8990fdfad37f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47e734b17201fe992be7775714e9558.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1648a5fa5fc592673fe18d561191f04f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
7 . 已知函数
,
.
(1)若
,求
的单调区间;
(2)若对任意的
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
都有
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b05b64d4400fcabe0607aed89ba900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7d285ff2cb5cd1c6a4467b87b5fa9a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710fe57b92bb3c8b64e1600191dcf80e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2959a581712a4384689cc98e724effa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
您最近一年使用:0次
名校
8 . 已知函数
,
.
(1)求函数
的单调区间;
(2)对一切
,
恒成立,求实数
的取值范围;
(3)证明:对一切
,都有
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f53f81bca037a4383c1fab122a3cd3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/161ff9873e51dc5532fdb10b3a4ab6cd.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)对一切
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30481398cc3a68f974f09fb2187b58e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)证明:对一切
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87682e8243c929c3c5dcaedbaa6e3c89.png)
您最近一年使用:0次
2017-12-08更新
|
1200次组卷
|
4卷引用:贵州省遵义市绥阳中学2019届高三模拟卷(一)文科数学试题
名校
解题方法
9 . 设
,
.
(1)求
在
处的切线方程;
(2)令
,求
的单调区间;
(3)若任意
且
,都有
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc873fc03e6e4d3c4ba02f8b1147b20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c03787d960a923b1d980edd67750eee4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d92dac50074dcfad46997b537c7cf3bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
(3)若任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b015c5de7880eebc4f5d7d02755ce4ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33ef5bdba9a82cf5b59b44c8b9c8ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2018-01-14更新
|
370次组卷
|
4卷引用:2017届贵州省贵阳市高三2月适应性考试(一)数学理试卷
10 . 设函数
,
.
(1)当
时,求函数
的单调区间及所有零点;
(2)设
,
,
为函数
图象上的三个不同点,且
,问:是否存在实数
,使得函数
在点
处的切线与直线
平行?若存在,求出所有满足条件的实数
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2065b9ce74cbd842ade1b5fefcb7b431.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ff82ebdfad5e7de1c7487b0b817a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a53e311ee0b5085e7e5a45c606daa5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8a5c6cfe749b0ece6cc1cf6c2e1a4fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac38d7f6106ba24d837ab72da148b289.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c37be2b439328ebffae72b6b9ba609c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-02-08更新
|
664次组卷
|
2卷引用:2017届贵州遵义南白中学高三理上学期联考四数学试卷