名校
1 . 已知函数
.
(1)讨论函数
的单调性;
(2)当
时,直线
是曲线
的切线,求
的最小值;
(3)若方程
有两个实数根.
证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d09ea78d6e7674d08a35f5d7b9783.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecc9920abcee41ad09f346eeb981b9d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e136e7637543c8ae92c8dcd55b31924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219ba6c8a1b54598db1a78cab28d9d30.png)
(3)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/678e9717b0cc5192ce8b165b24c6b93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f785cf50d39f57dcab409a674fe8a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ce126019e22a67bbf23664eb44fd72.png)
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2 . 已知函数
,(
为自然对数的底数).
(1)求函数
的单调区间:
(2)设
在
处的切线方程为
,求证:当
时,
;
(3)若
,存在
,使得
,且
,求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bfca6aa891545eac320d39efdc9cf85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83f3574c440135b1e8d33f9662e7e883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3368388525e30cb7179909b03184eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ded0b05becc31f50faac8a784416d60.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6e783b4d546b9bc372506ad0fda5dcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e8a67d76063c65c6dacd40863ae4081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/997ea12adc7ef7713dbcfb976a76ce91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09004e05c7796aca256f4df42002f7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43776adcbb95fb0bd4e07a0a62f9b353.png)
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名校
3 . 若函数
(其中
)在区间
上恰有4个零点,则a的取值范围为___________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aace095eebc2d644e1e1c4bb088c1110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab90f84a9b6ec1334ce6fc12495ec218.png)
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2024-03-25更新
|
1581次组卷
|
3卷引用:天津和平区2024届高三一模数学试题
名校
4 . 已知函数
.
(1)当
时,求
的单调区间;
(2)若
时,
,求a的取值范围;
(3)对于任意
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f27862c9517dbb4eb17a6725eb142969.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636289ad84b4a3a51095dd32ca201f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(3)对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1af027bd16e380d3be03a9761ca56055.png)
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2024-01-18更新
|
2010次组卷
|
9卷引用:天津市和平区耀华中学2024届高三下学期寒假验收考数学试卷
名校
解题方法
5 . 已知函数
,若函数
恰有4个零点,则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c18ebd877534a38b736cb935b58864e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-12-08更新
|
1044次组卷
|
6卷引用:天津市和平区天津一中2024届高三上学期第二次月考数学试题
天津市和平区天津一中2024届高三上学期第二次月考数学试题天津市第四十七中学2024届高三上学期第三次阶段性检测数学试题江西省赣州市南康中学2024届高三上学期七省联考考前数学猜题卷(三)(已下线)福建省福州市部分学校教学联盟2023-2024学年高一上学期期末质量检测数学试题天津市蓟州区第一中学2024届高三第一次校模拟考数学试卷(已下线)2024年天津高考数学真题变式题11-15
6 . 已知数列
是首项为1的等差数列,数列
是公比不为1的等比数列,满足
,
,
.
(1)求
和
的通项公式;
(2)求数列
的前
项和
;
(3)若数列
满足
,
,记
.是否存在整数
,使得对任意的
都有
成立?若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84672a737e1ba65228ffd2f0064a8c9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40751e69baead4a0d5bea384aedfa6c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dbe8fa82ab04f0a4ba4ad1c570c9aa1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec4bdc2a6d4fc387dc621f0b5a268c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b783cf91e34e692ce8e171f0965cb53f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea6578afabc23f5d7041b88c3790dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/614bac93e838d86d18422bed438368df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02b03f064cffd092bba6be3bfc95ecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1505d56f0b35fe7f2de1fe1888036e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414847d018e36898bde4a88772c1d2c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-11-30更新
|
1172次组卷
|
3卷引用:天津市和平区天津一中2024届高三上学期第三次月考数学试题
名校
7 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f0ebc77b83210330497b573b39c458e.png)
(1)当
时,求
在点
处的切线方程;
(2)若
对
恒成立,求实数
的取值范围
(3)
若有3个零点
,其中
,求实数
的取值范围,并证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f0ebc77b83210330497b573b39c458e.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/54b13280d106fe9c3db2069984325b63.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e728e7423960080153f3ef30e2b708d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5daf486cf2adbd7af8aa26fe66b57ce3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c06068ac2d0da29abec54df3f84347.png)
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2023-11-30更新
|
687次组卷
|
2卷引用:天津市和平区天津一中2024届高三上学期第三次月考数学试题
名校
8 . 已知函数
,a为实数.
(1)当
时,求函数在
处的切线方程;
(2)求函数
的单调区间;
(3)若函数
在
处取得极值,
是函数
的导函数,且
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dff3e03104de1a98c25ca84bd9591a31.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51947e18ac12b186aa3c09e62c036af9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187c21027ff08411931d32c530b64fd3.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/bb8a229cc42ec3bc9c5e68523cf5ebbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d24e9b3a955613bcb1a4fd32ab64c341.png)
您最近一年使用:0次
9 . 设函数
,曲线
在点
处的切线方程为
.
(1)求
的值;
(2)设函数
,求
的单调区间;
(3)求
的极值点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00b95002d09435b4da5fd01c74c66e38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ec89d17a1b8f7961e2f1f27c2d50685.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585de67a3fc494297d375d339af6d153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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2023-06-19更新
|
14848次组卷
|
18卷引用:天津市第一中学2023-2024学年高三上学期开学考试数学试题
天津市第一中学2023-2024学年高三上学期开学考试数学试题2023年北京高考数学真题专题02函数与导数(成品)(已下线)2023年北京高考数学真题变式题16-21北京十年真题专题03导数及其应用(已下线)考点17 导数的应用--函数极值问题 2024届高考数学考点总动员(已下线)第03讲 极值与最值(练习)(已下线)5.3.2课时1函数的极值 第三课 知识扩展延伸(已下线)重难点06 导数必考压轴解答题全归类【十一大题型】(已下线)专题3.2 函数的单调性、极值与最值【七大题型】(已下线)高考数学测试 请勿下载(已下线)专题22 导数解答题(文科)-1(已下线)专题22 导数解答题(理科)-2(已下线)专题2 导数与函数的极值、最值【讲】专题03导数及其应用专题13导数及其应用(已下线)五年北京专题09导数及其应用(已下线)三年北京专题09导数及其应用
名校
解题方法
10 . 设
,
,
.
(1)求函数
,
的单调区间和极值;
(2)若关于x不等式
在区间
上恒成立,求实数a的值;
(3)若存在直线
,其与曲线
和
共有3个不同交点
,
,
(
),求证:
成等比数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699f767ccf837c2bf8019d03451849c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914a49b0d7aedc593a3e87fbab7c31ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04c2d4affa0741e2f2582dc8e957685.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1128ef28912ba41f037afea504d6bc31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ebc97d255d9f92969a741955da4ec6.png)
(2)若关于x不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a3713bb22838d9432c9e484c537e8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
(3)若存在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ff39dd1dfc9caf911ad0d11ba21d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a28b3589f39573e9cc7d6684a033f24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd5552324550304765749352051d850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8828dad2747f16ae4efee1ac0344a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328071ace61d03885e3bc122b2713ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/830c98ceab2c157eac58caaf717b6de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
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