1 . 在平面直角坐标系
中,一动圆经过点
且与直线
相切,设该动圆圆心的轨迹为曲线K, P是曲线K上一点.
(1)当
时,求曲线K的轨迹方程;
(2)已知过点A 且斜率为k的直线l与曲线K交于B,C 两点,若
且直线
与直线
交于Q点.求证:
为定值:
(3)若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
且点 D,E在y轴上,
的内切圆的方程为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6316e0e6da742e9b035d8f2cc91a4dd.png)
求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d46110ded9a784e1e68684714746c9c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853e3c15d116fb61f236ab239c50b114.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
(2)已知过点A 且斜率为k的直线l与曲线K交于B,C 两点,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96968cc368104c626e7cdf658e361c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a249bee4ac9de17327ca5399e5077ca5.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c915b4ce31fabfd4703c547291ad9277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cff7399ecc698e2fb415147c96d0d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6316e0e6da742e9b035d8f2cc91a4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c915b4ce31fabfd4703c547291ad9277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cff7399ecc698e2fb415147c96d0d03.png)
您最近一年使用:0次
名校
2 . 已知直线l:
与双曲线C:
相切于点Q.
(1)试在集合
中选择一个数作为k的值,使得相应的t的值存在,并求出相应的t的值;
(2)设直线m过点
且其法向量
,证明:当
时,在双曲线C的右支上不存在点N,使之到直线
的距离为
;
(3)已知过点Q且与直线l垂直的直线
分别交x、y轴于A、B两点,又P是线段
中点,求点P的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae96f5020aef5aef03ec7f406460f608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea74737939c0f94c91229a7098f36ec.png)
(1)试在集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1196906fbdb1848b38b0419637041b36.png)
(2)设直线m过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b01f40efd0566aeec9927ddf01b0c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c96926a5e3210cc6bf604b99d2d26bc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacad534a542afab7c013dfc8a7c197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
(3)已知过点Q且与直线l垂直的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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3 . 已知双曲线
:
的渐近线为
,焦距为
,直线
与
的右支及渐近线的交点自上至下依次为
、
、
、
.
(1)求
的方程;
(2)证明:
;
(3)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10273b05ad8210d8db07639c4d149fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b91d650c2fc1a741fabdb333b09aeb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/8455657dde27aabe6adb7b188e031c11.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd1af14f9a53cb0f07d5d28dceba30aa.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/571664dafc35f8c9ee5cc20eebc80c9a.png)
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2024-04-29更新
|
786次组卷
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2卷引用:上海市建平中学2024届高三下学期三模考试数学试题
解题方法
4 . 已知双曲线
为双曲线
上的任意点.
(1)求双曲线
的两条渐近线方程及渐近线夹角的大小;
(2)求证:点
到双曲线
的两条渐近线的距离的乘积是一个常数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc8c2e80988e01d00354213b6ab9a2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求证:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2024-02-12更新
|
214次组卷
|
3卷引用:上海市新川中学2023-2024学年高二上学期期末数学试题
上海市新川中学2023-2024学年高二上学期期末数学试题上海市嘉定区第二中学2023-2024学年高二下学期3月月考数学试题(已下线)专题04 圆锥曲线(六大题型+优选提升题)-【好题汇编】备战2023-2024学年高二数学下学期期末真题分类汇编(沪教版2020选择性必修,上海专用)
解题方法
5 .
为直角梯形,
,
,
,
平面
,
,
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/ed58de43-d6f3-4f23-b0fa-75daf3b72b4f.png?resizew=166)
(1)求证:
;
(2)求点
到直线
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7b5ea5627440c19999a9039eaa1c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d150134e5018f74fc4e8a016ced5f11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e7191b68d9f70d08bc40dd774b390d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00803e67a5d417a9a4dc00277fca778b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/ed58de43-d6f3-4f23-b0fa-75daf3b72b4f.png?resizew=166)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c231fb9aeaf4b73c2d835bb4c3d42b.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
您最近一年使用:0次
6 . 已知椭圆C:
过点
,椭圆C离心率为
,其左右焦点分别为
,
,上下顶点为
,
.
(1)求椭圆C的方程;
(2)点Q是椭圆C上的一个动点,求
面积的最大值;
(3)若M,N为椭圆C上相异两点(均不同于点
),
,
的斜率分别是
,
,若
.求证:直线MN必过定点,并求出定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac5225ff6aa3c06ff5c8437f88093f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/234e7679481ec0d01c915b7fbb71891d.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/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
(1)求椭圆C的方程;
(2)点Q是椭圆C上的一个动点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8be89071185327fc002ac5d58bc3737.png)
(3)若M,N为椭圆C上相异两点(均不同于点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e884ca9429486026caa5e2310b0e4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd94d3c3765c52e2d6375f1959686430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/257beb71337358f5ccc57219d9153666.png)
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2023-01-13更新
|
478次组卷
|
3卷引用:上海市进才中学2022-2023学年高二上学期期末数学试题
名校
解题方法
7 . 设椭圆Γ:
的左、右焦点分别为
.直线l若与椭圆Γ只有一个公共点P,则称直线l为椭圆Γ的切线,P为切点.
(1)若直线l:y=x+2与椭圆相切,求椭圆的焦距
;
(2)求证:椭圆Γ上切点为
的切线方程为
;
(3)记
到直线l的距离为
,
到直线l的距离为
,判断“
”是“直线l与椭圆Γ相切”的什么条件?请给出你的结论和理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b24214f111f7c6d2b64e53ad970438b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
(1)若直线l:y=x+2与椭圆相切,求椭圆的焦距
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cdfc6a59392d1ac3cd89ddc0308864c.png)
(2)求证:椭圆Γ上切点为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf0d139c9810361b4971904a943856b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d909b1e23e983a34126882a80b0023.png)
(3)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31ac1def558351e2e3ed1235c570530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de5de39f1ef8cc3634ddea5145e2e3de.png)
您最近一年使用:0次
2022-11-06更新
|
234次组卷
|
4卷引用:上海市上海交通大学附属中学2022届高三下学期期中数学试题
上海市上海交通大学附属中学2022届高三下学期期中数学试题(已下线)专题14 圆锥曲线切线方程 微点3 圆锥曲线切线方程综合训练(已下线)专题12平面解析几何必考题型分类训练-42.1 椭圆 测试卷-2022-2023学年高二上学期数学北师大版(2019)选择性必修第一册
名校
解题方法
8 . 已知圆
的方程为
,过
点作圆
的切线
,切点为
.
(1)若
点的坐标为
,过
作直线与圆
交于
两点,当
时,求直线
的斜率;
(2)若点
在直线
上,请证明经过
三点的圆经过定点,并求出所有定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51ecf7a6913d90c2df051d608011cc57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df8904b700810cfd3519798668aa35f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad20e2bc6576fc461419f8f138d26e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6114947179bed8c2c86ac078e2f8497f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d79e7020414add95907e061df505ef0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f52cb58b6bc5d71030463ba7e28134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d102b40817eb37eebd37ac80bc1c7f20.png)
您最近一年使用:0次
2023-03-30更新
|
344次组卷
|
3卷引用:上海交通大学附属中学闵行分校2022-2023学年高二下学期3月月考数学试题
上海交通大学附属中学闵行分校2022-2023学年高二下学期3月月考数学试题上海市交通大学附属中学2022-2023学年高二下学期3月卓越考试数学试题(已下线)重难点03圆锥曲线综合七种问题解题方法-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)
2022·上海浦东新·模拟预测
名校
解题方法
9 . 已知
,函数
的图象为曲线
.
、
是
上的两点,
在第一象限,
在第二象限.设点
、
.
(1)若
到
和到直线
的距离相等,求
的值;
(2)已知
,证明:
为定值,并求出此定值(用
表示);
(3)设
,且直线
、
的斜率之和为
.求原点
到直线
距离的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d6eb8e22b38b1a1f2f4550bc8633bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.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/4bcd8ee2d8367c167d6ae0abc741b6b8.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/7ae4f082771efb99874041fe9c32aa81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f02e22b0fc087bd2cbb96ec3483b58e8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79e1023c4d2941e4753560787b7a9851.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ace585d3cc2e113a0927cdf9e56756a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acff98078cdd32804d8f1c4efbe2ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2022高三·全国·专题练习
名校
10 . 已知点
分别为双曲线Γ:
的左、右焦点,直线
与Γ有两个不同的交点A,B.
(1)当
时,求
到 l 的距离;
(2)若 O 为原点,直线 l 与 Γ 的两条渐近线在一、二象限的交点分别为 C,D,证明;当
的面积最小时,直线 CD 平行于x轴;
(3)设 P 为 x 轴上一点,是否存在实数
,使得
是以点P为直角顶点的等腰直角三角形?若存在,求出 k 的值及点 P 的坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f98254a6193566587a70c7d95fdabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea74737939c0f94c91229a7098f36ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd55f837e9c4e6bba1163ef13edd09b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cff4912c6278c202c099e37b6922e17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
(2)若 O 为原点,直线 l 与 Γ 的两条渐近线在一、二象限的交点分别为 C,D,证明;当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9a6eeeebf3cff569578d7366b755aa.png)
(3)设 P 为 x 轴上一点,是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6bdac20e214b2cb3bd07f8d4778dcca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
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2022-10-16更新
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8卷引用:上海市六校2023届高三下学期3月联考数学试题