1 . 已知函数
,
.
(1)当
时,求函数
的单调区间;
(2)设函数
在
处的切线方程为
,若函数
是
上的单调增函数,求
的值;
(3)是否存在一条直线与函数
的图象相切于两个不同的点?并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd6537d71c092b2a3c817161a0086e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b7c2420c387be8882df4359ac10b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(3)是否存在一条直线与函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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2019-03-29更新
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3卷引用:【校级联考】湖北省郧阳中学、恩施高中、随州二中三校2018-2019学年高二下学期期中考试数学(理)试题
名校
2 . 已知
.
(1)已知
是
导函数,求
的极值;
(2)设
,若
有两个零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b7d90cf79ded38b0af17ec1b4bae2a8.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb5a290f434bd6ccba20aad6f9067d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
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2019-06-18更新
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957次组卷
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3卷引用:【全国百强校】湖北省黄冈中学2019届高三适应性考试数学(理)试题
3 . 已知
,若存在实数
,满足
,则
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8cb5f59335bd6d0e6673826131e9f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a69f434cc713ab1fe3286e2090f057f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9ba50ede8ef97b843accf839fef5c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
4 . 已知函数
.
(1)若函数
在区间
内有两个极值点
,
,求实数
的取值范围;
(2)在(1)的基础上,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3ac7229c188d4e5723af7ea3497fe81.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.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/0a6936d370d6a238a608ca56f87198de.png)
(2)在(1)的基础上,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77ea11379ba50489c61f33968a462107.png)
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2019-12-28更新
|
854次组卷
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8卷引用:【市级联考】湖北省武汉市2019届高三4月调研测试数学(理)试题
名校
5 . 设函数
.
(1)若函数
在区间
(
为自然对数的底数)上有唯一的零点,求实数
的取值范围;
(2)若在
(
为自然对数的底数)上存在一点
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db81b0d2bb4cd24c2c76a195a53bb27e.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579e2c39e6c0a640357e3b0ccd6f954a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d218992d1942266d7208e476d0c4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579e2c39e6c0a640357e3b0ccd6f954a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d218992d1942266d7208e476d0c4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb817d13d03758c996ff17736092a74e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2019-05-20更新
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886次组卷
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4卷引用:【全国百强校】湖北省华中师范大学第一附属中学2019届高三月考(六)数学(理科)试题
名校
解题方法
6 . 已知函数
.
(1)讨论
极值点的个数;
(2)若
是
的一个极值点,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8da1f62f9e9e02e35ac9a8acd4fec4.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e648b684bdcf5375e5473db44099f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca41d5c07eb0d392da8a2e60ba1cfec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab058c2e43a5c77df6fdeb93a8debb7.png)
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2019-09-20更新
|
896次组卷
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3卷引用:2020年湖北省荆门市两校高三9月月考数学(理)试题(龙泉中学、宜昌一中)
7 . 已知动圆
过定点
,并且内切于定圆
.
(1)求动圆圆心
的轨迹方程;
(2)若
上存在两个点
,
,(1)中曲线上有两个点
,
,并且
,
,
三点共线,
,
,
三点共线,
,求四边形
的面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fd15503ee692f8286b0312f7c6f0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f92a5321c4cd2dfe6184c484dcee81.png)
(1)求动圆圆心
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c6190bd7c8b6554080994d3b40af85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7555f635da615b09b7e2f08ddbeaf1db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99393efa04579f3db5cf4f7e319f0440.png)
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2019-12-03更新
|
867次组卷
|
3卷引用:湖北省重点高中联考协作体2019-2020学年高二上学期期中数学试题(B卷)
湖北省重点高中联考协作体2019-2020学年高二上学期期中数学试题(B卷)湖北省重点高中联考协作体2019-2020学年高二上学期期中数学试题(A卷)(已下线)模块三 失分陷阱5 思维不严谨或信息提取有误
名校
8 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826fc6b06f59a8b6f8ad560865d04de9.png)
(1)求函数
的极值.
(2)当
时,证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826fc6b06f59a8b6f8ad560865d04de9.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/925b14a9e9b1b98a8fafe516517d2453.png)
您最近一年使用:0次
2019-05-05更新
|
802次组卷
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5卷引用:【校级联考】湖北省龙泉中学、随州一中、天门中学三校2019届高三四月联考理科数学试题
【校级联考】湖北省龙泉中学、随州一中、天门中学三校2019届高三四月联考理科数学试题(已下线)2019年6月9日 《每日一题》理数(下学期期末复习)-每周一测2020届宁夏六盘山高级中学高三上学期期末考试数学(文)(B卷)试题(已下线)第14讲 函数与导数的综合应用(练) — 2022年高考数学一轮复习讲练测(课标全国版)(已下线)专题17 盘点利用导数证明不等式的五种方法-1
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9 . 在直角坐标系
中,椭圆
的方程为
,左右焦点分别为
,
,设
为椭圆
上位于
轴上方的一点,且
轴,
、
为椭圆
上不同于
的两点,且
,设直线
与
轴交于点
,则
的取值范围为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c47fb32b931ef1125d7a241d1c829e98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a896e2a27b483e3a8384b6b46a1d54a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/489d120a817a6ecd28874209fefaf3b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
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2019-03-11更新
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832次组卷
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3卷引用:【市级联考】湖北省恩施州2019届高三2月教学质量检测数学(文)试题
【市级联考】湖北省恩施州2019届高三2月教学质量检测数学(文)试题重庆市杨家坪中学2019-2020学年高二上学期第二次月考数学试题(已下线)专题31 圆锥曲线中的定点、定值、探索性问题-冲刺2020高考跳出题海之高三数学模拟试题精中选萃
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10 . 已知椭圆
的长轴长为4,离心率为
.
(1)求椭圆
的标准方程;
(2)过
作动直线
交椭圆
于
两点,
为平面上一点,直线
的斜率分别为
,且满足
,问
点是否在某定直线上运动,若存在,求出该直线方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1193fec7c34d581b448525a32e7256e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f78c38805c09dcfbcc42103308975a74.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a820d31901f37f7d8c99ae3fa819030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae1567d8f98fabc1a3948f8602cc5e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ea3937ce03589a38914d715f8c78aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53caca1f2551527abc7643832820402f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e29cb2aa5e83497b85cd10f16d91a468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
2019-03-03更新
|
830次组卷
|
2卷引用:【市级联考】湖北省武汉市2019届高中毕业生二月调研测试数学(理)试题