2022高三·全国·专题练习
名校
解题方法
1 . 已知函数
,且函数
与
有相同的极值点.
(1)求实数
的值;
(2)若对
,不等式
恒成立,求实数
的取值范围;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85aeca2c9b0827de006b08da780e4483.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aeea6a9d18985683919c73dd88d9137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f447f81028f4ab8e24bd08f3b2a2f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9499a365cdb8f99011b9fcded5414f.png)
您最近一年使用:0次
2021-07-30更新
|
569次组卷
|
3卷引用:江苏省无锡市第一中学2020-2021学年高二下学期期中数学试题
江苏省无锡市第一中学2020-2021学年高二下学期期中数学试题(已下线)一轮大题专练8—导数(构造函数证明不等式2)-2022届高三数学一轮复习福建省厦门外国语学校2021-2022学年高二下学期期中考试数学试题
名校
解题方法
2 . 已知函数
.
(1)当
时,求函数
在点
处的切线方程.
(2)若
对任意的
恒成立,求
的值.
(3)在(2)的条件下,记
,证明:
存在唯一的极大值点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b77ba7d2fd83543ff795ba95a2668b3.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7d632e9ddb7d9857b073978f8314ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)在(2)的条件下,记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2948d1f0476a537e7150e8a8b0d3a421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df5ea5aebfb463f9e08de0c32c1c739.png)
您最近一年使用:0次
2020-07-11更新
|
709次组卷
|
3卷引用:江苏省无锡市第六高级中学2024届高三上学期12月教学质量调研数学试题
名校
解题方法
3 . 已知函数
,
.
(1)若
在
上单调递减,求实数
的取值范围;
(2)当
时,求证
在
上恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aafe4e0c76faa18fc4b8d2acc786fd2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b61adc4745f283e4072ddd762f92ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665e92c365730c03e3bc94aed79a1058.png)
您最近一年使用:0次
2021-08-08更新
|
524次组卷
|
3卷引用:江苏省无锡市2020-2021学年高二下学期期末数学试题
名校
解题方法
4 . 已知函数
.
(1)若
在
处有极值,求实数
的值;
(2)当
时,求函数
在区间
上的最大值;
(3)当
时,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e070869893f728e8228034361e907dee.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3c2f05431717c16d90fdc9fe09eac3.png)
您最近一年使用:0次
解题方法
5 . 已知函数
,其中
,
,
为自然对数的底数.
若
,
,①若函数
单调递增,求实数
的取值范围;②若对任意
,
恒成立,求实数
的取值范围.
若
,且
存在两个极值点
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b51aa0377178a5dbb39aad485c5dbea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b916c6d3fb2fdc67421489f207c93903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.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/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ff8d81b33375f68ddc6c41e42aca315.png)
您最近一年使用:0次
2020-05-25更新
|
421次组卷
|
2卷引用:江苏省无锡市江阴市三校(江阴、北郊、华中)2019-2020学年高三下学期5月联考数学试题
6 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ca209ccd15f84877fcd13a792119ab1.png)
(1)若
求曲线
在
处的切线方程;
(2)若
求函数
的单调区间;
(3)若
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ca209ccd15f84877fcd13a792119ab1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20439836def79ea69d967d95e81320a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c49d76e87bbf415a2e44525b94e073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4a5ffefe2c2a9a5648821d25e730b1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d39afeff3a758cfbc3f8c6df06f80e.png)
您最近一年使用:0次
7 . 已知函数 f(x) =
-ax(a > 0).
(1) 当 a = 1 时,求证:对于任意 x > 0,都有 f(x) > 0 成立;
(2) 若函数 y = f(x) 恰好在 x = x1 和 x = x2 两处取得极值,求证:
< ln a.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fdd4f2693028f8d3af6fe8beed4851.png)
(1) 当 a = 1 时,求证:对于任意 x > 0,都有 f(x) > 0 成立;
(2) 若函数 y = f(x) 恰好在 x = x1 和 x = x2 两处取得极值,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f890c615c5af6329afbcbcb0c70b7592.png)
您最近一年使用:0次
8 . 设函数
,其中
R.
(1)若a=0,求过点(0,﹣1)且与曲线
相切的直线方程;
(2)若函数
有两个零点
,
.①求a的取值范围;②求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1524cc6426cd0fad327fb5fd4ce1e5c.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45638ae62892b6fdec7b1048097805a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb71310ec267ea2c2fc0ccaeb2343d0.png)
(1)若a=0,求过点(0,﹣1)且与曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](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/d1524cc6426cd0fad327fb5fd4ce1e5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e37708a68d0ca72413ada85d01d2ed19.png)
您最近一年使用:0次
2018-02-01更新
|
630次组卷
|
5卷引用:【市级联考】江苏省无锡市2019届高三第一学期期末复习数学试题
【市级联考】江苏省无锡市2019届高三第一学期期末复习数学试题江苏省南京市2017-2018学年高二上学期期末考试数学理试题【全国校级联考】江苏省姜堰、溧阳、前黄中学2018届高三4月联考数学试题(已下线)2017-2018学年度下学期高二数学期末备考总动员C卷理科01(已下线)2017-2018学年度下学期高二数学期末备考总动员C卷文科01
名校
9 . 已知函数
,其中
.
(1)当
时,求不等式
在
上的解;
(2)设
,
关于直线
对称的函数为
,求证:当
时,
;
(3)若函数
恰好在
和
两处取得极值,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f87849ca08d658825f27ff5452ebfc1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a38d656a5a13425841d80ae545fda8dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c765461ae1a6c70f5cbdcb6c932a22b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89c2aee10135c53ad8f6031088611644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f786a5701dc1a8a015e8843c3360151b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9264ddfbe9220962147887dff9377271.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357f472be151fb8cdc8f7991c4879d25.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971905ea129aec0ca7c325f60260c7e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd86badb20015aa65328fda1e43a117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5472ec4be0f7a7049cd16bbee4d11123.png)
您最近一年使用:0次
10 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd37733bd52885a0b66944c36f623c41.png)
(1)当
时,求
的单调区间;
(2)令
,区间
,
为自然对数的底数.
(ⅰ)若函数
在区间
上有两个极值,求实数
的取值范围;
(ⅱ)设函数
在区间
上的两个极值分别为
和
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd37733bd52885a0b66944c36f623c41.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c532b5af7b88f1c21a7584cfac5fea6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2620b68f4fc20bb825b451d2afd11092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(ⅰ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(ⅱ)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22f0427915ac19bd2f9383d079b2a063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df1f6718b4be26dd3274eddbbdf7dd29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bacae1d2a0e7bf4cbc7d4b77b3afb51d.png)
您最近一年使用:0次