解题方法
1 . 已知函数
在
上单调递增.
(1)求
的取值范围;
(2)若存在正数
满足
(
为
的导函数),求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d14d06be01751f8ef6154d28c2b2b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若存在正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f58d4591d668b4bc32fae4faab8298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51521e8de2831f4701511a34491dba14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99d47c1b2254840eb6c54ec0c6214990.png)
您最近一年使用:0次
解题方法
2 . 已知函数
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若函数
的图象恒不在
轴上方,求实数
的取值范围;
(2)证明:
,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/021785da54f1df0f8ff7e1b22fd58c57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0ef5a0f806510d2d74492a44dbc721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
您最近一年使用:0次
2023·全国·模拟预测
名校
3 . 已知
,函数
.
(1)当
时,求曲线
在
处的切线方程;
(2)若
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2eac2ca815b49d08974e3811d62b56.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c8fab1ef156db1dc2384dff7f9b9e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-05-01更新
|
730次组卷
|
4卷引用:海南省西南大学东方实验中学2023届高三模拟考试(5月押轴模拟)数学试题
海南省西南大学东方实验中学2023届高三模拟考试(5月押轴模拟)数学试题(已下线)2023年高三数学(理)押题卷二云南省楚雄彝族自治州民族中学2022-2023学年高二下学期6月月考数学试题(已下线)重难点突破07 不等式恒成立问题(十大题型)-2
解题方法
4 . 已知函数,
,点
,设曲线
在点A,B处的切线的斜率分别为
,
,直线
的斜率为k.
(1)若
存在极小值,且极小值为0,求实数a的值;
(2)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edceb1f45633fa5111f9d7fe05177fc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6666042e9d296a45b4c212367ea25914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47fe863357e026cd960fea54a3ac827d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4ca086fca586da964c007788de45cc.png)
您最近一年使用:0次
名校
解题方法
5 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)若函数
有两个极值点
,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c38bc12835a30758ed4785cc370f0390.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111324440f372e35f0f37dd29837bea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c72dad34557b79649806a6154d3bacf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a306d6cd5034071906f72e3fbeb907.png)
您最近一年使用:0次
2023-04-24更新
|
1078次组卷
|
4卷引用:海南省海口观澜湖华侨学校2023届高三第六次考试数学试题
海南省海口观澜湖华侨学校2023届高三第六次考试数学试题甘肃省酒泉市2023届高三三模文科数学试题宁夏回族自治区银川一中2023届高三三模数学(文)试题(已下线)第六章 导数与不等式恒成立问题 专题九 双变量不等式恒成立问题 微点3 双变量不等式恒成立问题之换元法
名校
6 . 已知函数
.
(1)若函数
在
上只有一个零点,求
的取值范围;
(2)若
,记数列
的前
项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c5c950433249cbee40438976c48c3e.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2016fb5660a8bd093473903057e08da2.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/ef80a3ff6237c407bfb14c1252c59534.png)
您最近一年使用:0次
7 . 已知函数
,
.
(1)讨论函数
的单调性;
(2)当
时,函数
有两个不同的零点
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ea400e6c5e28322f5b5c8f8522e1da8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc80fc6d83395bf479026a4726194653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd888afdcfdb3e91a157d50f65e915e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/066bb2df7fb6ba52c87cbd293b0901e0.png)
您最近一年使用:0次
2023-04-16更新
|
480次组卷
|
2卷引用:海南省儋州市第三中学2022-2023学年高二下学期期中考试数学试卷
名校
8 . 已知函数
.
(1)求
的最值;
(2)当
时,函数
的图像与
的图像有两个不同的交点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c136ed449ac2ee8e4d0cbbfc02ca60c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6512eb46832b81f868a017eebc3b47e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-03-24更新
|
486次组卷
|
2卷引用:海南省2023届高三一轮复习调研考试数学试题
2023高三·全国·专题练习
解题方法
9 . 已知函数
.
(1)求函数
的最值;
(2)若
恒成立,求实数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1956e350d26709968f71d0500a7537a7.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8036f5389a294d763c44120a512371c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
10 . 已知
在
处的切线方程为
.
(1)求函数
的解析式:
(2)
是
的导函数,证明:对任意
,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9303148aba05dd1276ec04cad34e857d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4a2b4c212450b2a0f77e042c8da13dd.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c164755dc2d7cff80fb4c9cffc9be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4606e82c8df971bd7803c532c58b7a00.png)
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2023-02-19更新
|
975次组卷
|
6卷引用:海南省海口中学2023届高三第三次模拟测试(A卷)数学试题