名校
1 . 已知函数
,
.
(1)讨论函数
极值点的个数;
(2)若对
,不等式
成立.
(i)求实数
的取值范围;
(ii)求证:当
时,不等式
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6225208da0f993459b1aa6cebf75e71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/824567f7737a62ac120b0dadc44e6263.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6422b9c2e93a91fe9e39ce4d9dabb0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
(i)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ii)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8e6ca571901c25b53f263d31184994.png)
您最近一年使用:0次
2017-06-11更新
|
974次组卷
|
5卷引用:2017届湖北省七市(州)高三第一次联合调考(3月联考)数学(理)试卷
2 . 已知函数
.
(1)求
的零点及单调区间;
(2)求证:曲线
存在斜率为8的切线,且切点的纵坐标
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f31178f1978c6aef5443c8400fee606c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求证:曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb1b4d347d6ccd6e3348470195866d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4be602013c216a499bffb6e571be9c5.png)
您最近一年使用:0次
解题方法
3 . 已知函数
,
.
(1)探究函数
的极值点情况;
(2)求证:当
时,
恒成立,其中
为自然对数的底数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b54f6c11fd5c98c3d787f807a503d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)探究函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5b1f94d50c52757ada4143ac41ef972.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
您最近一年使用:0次
解题方法
4 . 已知函数
,其中
.
(1)若
时,函数
有两个极值点
,求
的取值范围,并证明
;
(2)若
时,不等式
对于任意
总成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2788641ba8831e2ac61ed6d41a651c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dae74c724114bfeff024dd7b79f5edc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc9fb095b3b85dd8a662a21422ce6df.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a191a80b32cd8f5715948300f6ca08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
解题方法
5 . 已知函数
,函数
的图象在点
处的切线方程为
.
(1)求函数
的表达式;
(2)若
,且
在
上的最小值为
,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3dba99d797fb510cf97a69de003911b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604f25e23489409386a06039adcaa151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80cf0f8829ad6ed064ba129545b2d3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9355031ea0b2dc9cef3777621bc6d38.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5f421939ee855f25927e7570d82c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d2f7cf8b2952f5de03a32af45831cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46952263349c0bff2725caeeb0b5f6b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43920f5171ed31db2520ef00e4c5fc24.png)
您最近一年使用:0次
6 . 已知函数
.
(1)当函数
在点
处的切线方程为
,求函数
的解析式;
(2)在(1)的条件下,若
是函数
的零点,且
,求
的值;
(3)当
时,函数
有两个零点
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d98ac2f17893b3a65f6e0b0fe2b92374.png)
(1)当函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c887da0c850acf41ab249cc262ae39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94004e756bed5ac08a2062a8bab8992f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa8edd94c1ef4ab5557e938278ef066c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02657ab1c65825868e49acb108fdd862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c45b5bbd5fb7706c6f7c24df34fc145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d14ff8de4b75799117d109d9655032.png)
您最近一年使用:0次
2016-12-04更新
|
718次组卷
|
5卷引用:湖北省宜昌市第二中学2019-2020学年高三上学期10月月考数学(理)试卷
7 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)讨论函数
的单调性;
(3)当
时,曲线
与
轴交于点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef434bdd1714edd0752c08e9b0958758.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d983f1213ce474227e80c41d7fba6374.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0200bb2c3cc080a5d1ecf36f80aea0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475c9073257b3d0760e2c6051a82d592.png)
您最近一年使用:0次
13-14高二·江西宜春·阶段练习
名校
8 . 已知函数
.
(1)讨论函数
的单调性;
(2)若函数
在
处取得极值,不等式
对
恒成立,求实数
的取值范围;
(3)当
时,证明不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff615387db7c9645acc1a82f8dd428a.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71944acb81a6e3e219f6f6f748ee3f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e81b4aac721bcd4a49593b48a28a8f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4db634159e02e30a5996f4296ceb91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246400d13391f177bde3d4b923146fe4.png)
您最近一年使用:0次
2016-12-03更新
|
682次组卷
|
3卷引用:【校级联考】湖北省宜昌市(宜都二中、东湖高中)2019届高三12月联考数学(理)试题
【校级联考】湖北省宜昌市(宜都二中、东湖高中)2019届高三12月联考数学(理)试题(已下线)2013-2014学年江西宜春上高二中高二第六次月考理数学卷甘肃省天水市第一中学2019届高三下学期第三次模拟考试数学(理)试题
名校
解题方法
9 . 已知函数
(
为自然对数的底数).
(1)求函数
的单调区间;
(2)当
时,若
对任意的
恒成立,求实数
的值;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14dee98f762932a2b717636a20306b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a90b936a01686cc776e994a1a69b5dc.png)
您最近一年使用:0次
2016-12-02更新
|
1475次组卷
|
6卷引用:2016届湖北襄阳四中高三六月全真模拟一数学(理)试卷
解题方法
10 . 已知函数
,其中
为自然对数的底数.
(1)当
,
时,证明:
;
(2)当
时,讨论函数
的极值点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1537d9c075809d0d2886d2815bd8cc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff5a8f648d375cc6ccf6649cab698c6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1487e9e4bd2c25c594e655e95c44d574.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70333079f6699dd59d4887f06988f219.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6edad7047f44b24fbd5c03f56ebc8df.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a54c343ea9ecc5831922840590b9c7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2018-04-27更新
|
572次组卷
|
2卷引用:湖北省荆州市2018届高三质量检查(III)数学文试题