解题方法
1 . 设函数
.
(1)若
为单调递增函数,求
的值;
(2)当
时,直线
与曲线
相切,求
的取值范围;
(3)若
的值域为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23fd3528abd567636055e2193046d0c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1eaf48f1ad368af0b0961322e50d74e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d31f9ce464f2ce3b24833b70595941c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e9454e1c89d09cb8e1fbd628ae2cbb.png)
您最近一年使用:0次
2 . 已知函数
.
(1)求函数
在
处的切线方程;
(2)若方程
有两个不同实根
、
证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f85350ec58137115e8a81198ed3312c.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.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/ea76bb0adc8a47c896e09f1ede275dbd.png)
您最近一年使用:0次
名校
3 . 已知实数
,函数
.
(1)若函数
在
中有极值,求实数
的取值范围;
(2)若函数
有唯一的零点
,求证:
.
(参考数据
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1797f807cb30bcd4cc08e3458672af26.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed01c000d5ebdb220997144355dfdf82.png)
(参考数据
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9405361d7be3c9e4d462a4e955d8fe3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7739fabf233e5b2136faf751a7ebc02.png)
您最近一年使用:0次
2021-03-28更新
|
848次组卷
|
3卷引用:浙江省宁波市镇海中学2020-2021学年高二上学期期末数学试题
名校
4 . 已知函数
(
).
(1)讨论函数
的单调性;
(2)当
时,令
,若函数
的图象与直线
相交于不同的两点
,
,设
,
(
)分别为点
,
的横坐标,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86964d2caf03b97cecada2f578bd591.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/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6097169b69ad927c38efd7d52ec65f95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23db9af5ae6f19308d002f88a4781386.png)
您最近一年使用:0次
2021-03-24更新
|
1772次组卷
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6卷引用:2021年浙江省新高考测评卷数学(第六模拟)
2021年浙江省新高考测评卷数学(第六模拟)湖北省襄阳市第四中学2021届高三下学期一模数学试题(已下线)一轮大题专练10—导数(双变量与极值点偏移问题2)-2022届高三数学一轮复习(已下线)第22题 导数在证明不等式中的应用-2021年高考数学真题逐题揭秘与以例及类(新高考全国Ⅰ卷)江苏省盐城市阜宁中学2022届高三下学期第三次综合测试数学试题人教A版(2019) 选修第二册 过关斩将 名优卷 综合检测
名校
解题方法
5 . 已知函数
,其中
是自然对数的底数
(1)若曲线
与直线
有交点,求a的最小值;
(2)①设
,问是否存在最大整数k,使得对任意正数x都
成立?若存在,求出k的值,若不存在,请说明理由;
②若曲线
与直线
有两个不同的交点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5c15160d3f2020b2b1f295cfa31e78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6ca12a57481d558b9d33f3f3d1ccc9.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46111e4d12c21798aa213c0d7804c2ac.png)
(2)①设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4de989efaf201771dbe2800eaedd155.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315af2a3f3c85eba58076612d929fbc1.png)
②若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46111e4d12c21798aa213c0d7804c2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357332017bb8e556e50f7c02381117d0.png)
您最近一年使用:0次
2021-03-22更新
|
980次组卷
|
4卷引用:浙江省宁波十校2021届高三下学期3月联考数学试题
浙江省宁波十校2021届高三下学期3月联考数学试题浙江省2021届高三下学期4月高考模拟(8)数学试题湖北省黄冈中学2021届高三下学期5月适应性考试数学试题(已下线)综合测试卷(巅峰版)-【新教材优创】突破满分数学之2020-2021学年高二数学重难点突破(人教A版2019选择性必修第二册)
解题方法
6 . 已知函数
,
为自然对数的底数.
(Ⅰ)当
且
时,证明:
;
(Ⅱ)当
时,函数
在区间
上单调递增,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e8108432860e53094bd69d008cb52b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfd09fb9482124fd35f19b86894648f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-01-29更新
|
771次组卷
|
6卷引用:浙江省湖州市2020-2021学年高三上学期期末数学试题
浙江省湖州市2020-2021学年高三上学期期末数学试题浙江省杭州市桐庐分水高级中学2021届高三下学期回头考数学试题(已下线)专题28 导数及其应用(解答题)-2021年高考数学二轮复习热点题型精选精练(新高考地区专用)(已下线)专题26 导数及其应用(解答题)-2021年高考数学(文)二轮复习热点题型精选精练(已下线)专题28 导数及其应用(解答题)-2021年高考数学(理)二轮复习热点题型精选精练(已下线)仿真系列卷(07) - 决胜2021高考数学仿真系列卷(江苏等八省新高考地区专用)
解题方法
7 . 设函数
.
(1)求函数
的单调区间;
(2)若直线
与曲线
和曲线
分别交于点
和
,求
的最小值;
(3)设函数
,当
时,证明:
存在极小值点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1abf1ced0d15cb79dc9fd6119f29fd.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7581d58715d7cbb41528d062f9e765f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82358b724051b032c7ec734a226ae84.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658c757ead50025f5479929d598a8213.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192adcf9a3f4732c46baa1099dfc3f9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e75f4633ab2c70bd00b255bc455f625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe3c67bb05eea21fa40c00b289b12c0.png)
您最近一年使用:0次
解题方法
8 . 如图,过抛物线
:
的焦点
作直线
与
交于
,
两点,与直线
交于点
(
).过点
作
的两条切线,切点分别为
,
.
![](https://img.xkw.com/dksih/QBM/2021/6/21/2747912079171584/2782379775041536/STEM/8557ceca-77e4-4845-9232-5e83b3e7ffeb.png?resizew=183)
(Ⅰ)证明:
;
(Ⅱ)求四边形
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed50b587442312d10eaad5b163ad27ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/2021/6/21/2747912079171584/2782379775041536/STEM/8557ceca-77e4-4845-9232-5e83b3e7ffeb.png?resizew=183)
(Ⅰ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1be642ddd61c3ad26bcbe2dc42e3512.png)
(Ⅱ)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20cf25a0abc5c3127e6139633e822c9e.png)
您最近一年使用:0次
9 . 已知函数
.
(1)求函数
的单调区间;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b22e91b1d176c45f0fe129625d5540.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dbb81d2f9d885105de6ba8d0914b96e.png)
您最近一年使用:0次
10 . 已知函数
.
(1)求函数
在
内的单调递增区间;
(2)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a341411cc8bef811c5f74bc567f3eb.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ff8dca35b759d3051b62badd7d76bc.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b916c6d3fb2fdc67421489f207c93903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c7572463225bb3b65cb371f4496440.png)
您最近一年使用:0次
2021-02-26更新
|
1322次组卷
|
4卷引用:押第22题导数-备战2021年高考数学临考题号押题(浙江专用)
(已下线)押第22题导数-备战2021年高考数学临考题号押题(浙江专用)贵州新高考联盟2021届高三下学期入学质量监测数学(文)试题(已下线)专题34 仿真模拟卷03-2021年高考数学(文)二轮复习热点题型精选精练河南省洛阳市豫西名校2020-2021学年高二下学期第一次联考理科数学试题