1 . 已知直线
与曲线
交于
、
两点,
为坐标原点.
(1)当
时,有
,求曲线
的方程;
(2)当实数
为何值时,对任意
,都有
为定值
?指出
的值;
(3)已知点
,当
,
变化时,动点
满足
,求动点
的纵坐标的变化范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b8496f1a8c16c4aea19b106352e026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5817f67625f677f1a8c35b20c0c6aed.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/1dde8112e8eb968fd042418dd632759e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0f4a227754facf7d5aee67d230c0ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)当实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b0ba14e41e306e5633ad4bf1cdedd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(3)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25e326fdf9e5456f48e8a99a069f379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b624d88827e92e12bc0a8f1067cbe72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c560c2606753f8cafa92eacc2dc75ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2023-01-19更新
|
382次组卷
|
2卷引用:上海市格致中学2021届高三上学期10月月考数学试题
名校
解题方法
2 . 已知双曲线
的方程为
.
(1)直线
与双曲线的一支有两个不同的交点,求
的取值范围;
(2)过双曲线
上一点
的直线分别交两条渐近线于
两点,且
是线段
的中点,求证:
为常数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a44342c2ee26a279265225982499b71.png)
(1)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19154d71383328a57153a293beb1faec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)过双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28b6ab702f8e93cc1e680a7d7af06786.png)
您最近一年使用:0次
2022-12-05更新
|
383次组卷
|
3卷引用:上海市行知中学2020-2021学年高二上学期12月月考数学试题
上海市行知中学2020-2021学年高二上学期12月月考数学试题湖北省襄阳市老河口市第一中学2022-2023学年高二上学期元月月考数学试题(已下线)广东省深圳市高级中学(集团)2023届高三上学期期末数学试题变式题17-22
解题方法
3 . 如图,开口向右的抛物线对称轴与x轴重合,焦点位于坐标原点处,并且过点
.设直线
与抛物线交于
两点,直线
看与抛物线交于
两点.
![](https://img.xkw.com/dksih/QBM/2023/2/7/3169711929909248/3169843440074752/STEM/cdb8ea8fb97149f8848f61456cc00bd0.png?resizew=317)
(1)求抛物线方程.
(2)求证:
.
(3)设直线
分别与y轴交于P,Q两点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6554ac3dff4a59833e407db887f6e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc756fb11c7c96bf318b5fae4982f507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47aca422a33ec9b9430d204659ff9fbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c345dfe2ac9387357be143c0b96de6ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/756f66428eba953d4610f59a3479d143.png)
![](https://img.xkw.com/dksih/QBM/2023/2/7/3169711929909248/3169843440074752/STEM/cdb8ea8fb97149f8848f61456cc00bd0.png?resizew=317)
(1)求抛物线方程.
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d298273d6dc5a07cc6f819ac3e63730.png)
(3)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3c032441543354c154ee67d744abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15abfafc59b6f9f01f3be4db4df797d.png)
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4 . 已知罗尔中值定理:若函数
满足:①
在
上连续;②
在
上可异;③
,则存在
,使得
.
(1)试证明拉格朗日中值定理:若函数
满足:①
在
们上连续;②
在
上可导,则存在
,使得
.
(2)设
的定义域与值域均为
且
在其定义域上连续且可导.求证:对任意正整数n,存在互不相同的
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f94345694d4215284c41f87146795ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8166cc061d434d02bccbcf153cc6b48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be227e1da97582fd99cb7cec416982af.png)
(1)试证明拉格朗日中值定理:若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8166cc061d434d02bccbcf153cc6b48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7853db400c62dc688f01aa38be72acd2.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a61eaad9616cce2705245cc7ffc2636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05eca773cea4fc8732050ab44063aa3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5932903a7ddb5fe53eff8249c6cd3619.png)
您最近一年使用:0次
20-21高二·全国·单元测试
真题
5 . 已知a>0,函数
,设x1>0,记曲线y=f(x)在点(x1,f(x1))处的切线为l.
(1)求l的方程;
(2)设l与x轴交点为(x2,0)证明:
①
;
②若
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d4753bd26a60cd38f2d65edcd3c7a0e.png)
(1)求l的方程;
(2)设l与x轴交点为(x2,0)证明:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e37ca83d51488ea2896f8348a626b705.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b59fcaf9df58c979c73732ad5479e5e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0de268b006b96ceba6298511cb0bdb3.png)
您最近一年使用:0次
6 . 已知
,B在圆
上运动,过
的中点M向y轴引垂线,垂足为N,且
,设
,点P的轨迹为曲线
.
(1)求曲线
的方程,并证明直线
与
的斜率之积为定值;
(2)设E,F是曲线
上的不同两点,O为坐标原点,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40630a669f4eedf626bc24851df10c85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74f8ebed1c19f199dc9165162dc5d3f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f3da46e58716b14ac1f8eb493fb9667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531b86323f50ea2b30aa5e033d1d396c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
(2)设E,F是曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6eb55ed7f3fff3660eecdbe5ab87a6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc869125145c0139d92490a41bd3918.png)
您最近一年使用:0次
7 . 已知
是x轴上的点,坐标原点O为线段
的中点,
,
是坐标平面上的动点,点P在线段FG上,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/9be3b307-e1a6-4ed5-97b9-8f0ac5719cc2.png?resizew=217)
(1)求
的轨迹C的方程;
(2)A、B为轨迹C上任意两点,且
,M为AB的中点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c2310d876bd1f7215ab22e2296986c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33fbf5277bd86233f6ccac30d7bef1e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/9be3b307-e1a6-4ed5-97b9-8f0ac5719cc2.png?resizew=217)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)A、B为轨迹C上任意两点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/466a7d54fded2560df377fc909c55189.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a97c308f1732d82f0f46847b4fce4ef0.png)
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真题
解题方法
8 . 函数y=f(x)在区间(0,+∞)内可导,导函数
是减函数,且
.设x0∈(0,+∞),
是曲线y=f(x)在点(x0,f(x0))的切线方程,并设函数
.
(1)用
表示m;
(2)证明:当x0∈(0,+∞)时,
;
(3)若关于x的不等式
在[0,+∞)上恒成立,其中a,b为实数,求b的取值范围及a与b所满足的关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e808873b814cf720131eeed83e88bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0195b09df4650c8e818131f4608000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46240f61b85f15c0ef80b30b599c9772.png)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ba09c544777391218919e9146d45ad2.png)
(2)证明:当x0∈(0,+∞)时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e653994b245fbdc2ac3458429c65e69e.png)
(3)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c070bd52b36f70fe52b7d5187de1163.png)
您最近一年使用:0次
2021-12-09更新
|
423次组卷
|
3卷引用:天津市南开区南大奥宇培训学校2020-2021学年高三上学期第一次月考数学试题
天津市南开区南大奥宇培训学校2020-2021学年高三上学期第一次月考数学试题2005年普通高等学校招生考试数学试题(辽宁卷)(已下线)考点20 导数的应用--不等式问题 2024届高考数学考点总动员【练】
名校
解题方法
9 . 如图①,在平面直角坐标系中,抛物线
与x轴交于A,B两点(点A在点B左侧),点
,顶点为D,与y轴交于点C,连接AC,已知
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/289ebb23-f57e-4e9e-8fc7-056798db5896.png?resizew=519)
(1)求这个抛物线的解析式;
(2)如图②,点E在y轴的负半轴上,且
,连接BE,并延长交抛物线于点F,点P为直线BF上方抛物线上一动点,连接PB,PE,当
的面积最大时,请求出
面积的最大值及点P的坐标;
(3)如图③,将抛物线y沿射线BC方向平移
个单位到新抛物线
,它与y轴交于点M,此时新抛物线顶点记为
,N为新抛物线
上一点,若
是以
为直角边的直角三角形,求点N的横坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf88f8b9e5e676d4567f22baa170cdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ba5cbb31299d683ac6c7dd795db85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26b0c37483134daa681c57a34578f969.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/289ebb23-f57e-4e9e-8fc7-056798db5896.png?resizew=519)
(1)求这个抛物线的解析式;
(2)如图②,点E在y轴的负半轴上,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac34dad8dd3d94f1a30f15e83624975c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6accdd9b317c922d335e44911df357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6accdd9b317c922d335e44911df357.png)
(3)如图③,将抛物线y沿射线BC方向平移
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c70bb6b41fb1bb0894390e93230bdd24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b4d2174f411d9db6ab7b2aea47818cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b4d2174f411d9db6ab7b2aea47818cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8187ce9b1e2c747524f13828b9e8dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0800d7a18ba8f6341471043b528ea0bb.png)
您最近一年使用:0次
名校
解题方法
10 . 如图,椭圆有这样的光学性质:从椭圆的一个焦点出发的光线,经椭圆反射后,反射光线经过椭圆的另一个焦点.已知椭圆
:
的左、右焦点分别为
,
,左、右顶点分别为
,
,一光线从点
射出经椭圆
上
点反射,法线(与椭圆
在
处的切线垂直的直线)与
轴交于点
,已知
,
.
![](https://img.xkw.com/dksih/QBM/2021/4/28/2709617615650816/2711746662629376/STEM/9c76383a-0a7e-4b6f-9c55-b4df8147515f.png?resizew=318)
(1)求椭圆
的方程.
(2)过
的直线与椭圆
交于
,
两点(均不与
,
重合),直线
与直线
交于
点,证明:
,
,
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9bece414af7ecb2d796dc8a6f549e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e824abc723d59ba472b92aded26bde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce2b734a628a3f60285bff22ebac12f.png)
![](https://img.xkw.com/dksih/QBM/2021/4/28/2709617615650816/2711746662629376/STEM/9c76383a-0a7e-4b6f-9c55-b4df8147515f.png?resizew=318)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
您最近一年使用:0次
2021-05-01更新
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622次组卷
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4卷引用:广东省广州市协和中学2020-2021学年高二上学期期中数学试题