1 . 设动点P到两定点
和
的距离分别为
和
,
,且存在常数
,使得
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/4999adeb-a480-4cfb-838e-c04b9d3fb390.png?resizew=232)
(1)证明:动点P的轨迹C为双曲线,并求出C的方程;
(2)如图,过点
的直线与双曲线C的右支交于
两点.问:是否存在
,使
是以点B为直角顶点的等腰直角三角形?若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9d55173f26afdf0e37462b556a605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d6f746c2355072d914591bf60c3801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31ac1def558351e2e3ed1235c570530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb328a35ae67195cba3dbcde8a762304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5743e17bb4843feb9fe46a973a0fab42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dc739a29ec021629808ea21b9bdf876.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/4999adeb-a480-4cfb-838e-c04b9d3fb390.png?resizew=232)
(1)证明:动点P的轨迹C为双曲线,并求出C的方程;
(2)如图,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ff8a5886e42095da57422c8777c10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
真题
解题方法
2 . 设椭圆
的左、右焦点分别为
,
,A是椭圆上的一点,
,原点O到直线
的距离为
.
(1)证明
;
(2)求
使得下述命题成立:设圆
上任意点
处的切线交椭圆于
两点,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df90497fae2eee9c7c8e7ce3c180d46.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/1b9798e82d9baaba782159f1ff0b954c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a8af2c8284fa7d93d9e12d428ff9a4c.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4037561c629fd07503c6803e1eb62fb6.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f8e1cad7acd507f06b9e932b2e84cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa7de36c61b46411ca108be04d35267a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22962a2ad892cb6b14ab039a06e8cdc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357e0872d9e98d662a780e7686de86ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31fbd58d7ab0d4c6a4a3e282beb8a1f5.png)
您最近一年使用:0次
真题
解题方法
3 . 已知
,抛物线
,且
的公共弦
过椭圆
的右焦点.
(1)当
轴时,求m、p的值,并判断抛物线
的焦点是否在直线
上;
(2)是否存在m、p的值,使抛物线
的焦点恰在直线
上?若存在,求出符合条件的m、p的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6533a2123bcaa8c7dcd36d5e3f37700f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e2dbe7c46898216e14556c84ff13ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880248fa1259b2600a87f09a61287d44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24624dffd30b66a5e4de57362b32b2a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)是否存在m、p的值,使抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
4 . 设
、
是椭圆
上的两点,点
是线段
的中点,线段
的垂直平分线与椭圆相交于
、
两点.
(1)确定
的取值范围,并求直线
的方程;
(2)试判断是否存在这样的
,使得
、
、
、
四点在同一个圆上?并说明理由.
![](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/91cf46eb069814345a244227ee0325f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b7c1267a0f8ae5e9d929fd3e7f0640.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)确定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)试判断是否存在这样的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
2022-11-09更新
|
737次组卷
|
4卷引用:2005年普通高等学校招生考试数学(文)试题(湖北卷)
2005年普通高等学校招生考试数学(文)试题(湖北卷)2005年普通高等学校招生考试数学(理)试题(湖北卷)(已下线)第五篇 向量与几何 专题10 圆锥曲线中的四点共圆问题 微点2 圆锥曲线中的四点共圆问题(二)(已下线)专题3 曲线系方程及其应用【练】(压轴题大全)
真题
解题方法
5 . 如图,椭圆的长轴
与x轴平行,短轴
在y轴上,中心为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/3ed9fd99-c37e-4477-bfd6-d8eb42e17367.png?resizew=293)
(1)写出椭圆的方程,求椭圆的焦点坐标及离心率;
(2)直线
交椭圆于两点
;直线
交椭圆于两点
,
.求证:
;
(3)对于(2)中的中的在
,
,
,
,设
交
轴于
点,
交
轴于
点,求证:
(证明过程不考虑
或
垂直于
轴的情形)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473913c0887bb64d386f4c02f1853452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc9076974ebd6331d67055302be8167.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e395571ff5d1ea9ea8ceb06522211f89.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/3ed9fd99-c37e-4477-bfd6-d8eb42e17367.png?resizew=293)
(1)写出椭圆的方程,求椭圆的焦点坐标及离心率;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766bc42b7ead98238a339bb4dc42bb51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e9c4ea393bbf064453e91f4800f967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87f8af9ce5d927e6f422de42ead6ffb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a060ffc86c94a526d4d1086e5590a4f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eea915b7c0562b239ea553b9ed2f9897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6318191342aedeaeeddb0f259ed759b3.png)
(3)对于(2)中的中的在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6655e2fa64a32cd12fe0279afd65d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce8f887360a533f0a25b0b34fb11f0a1.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/e15abfafc59b6f9f01f3be4db4df797d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6655e2fa64a32cd12fe0279afd65d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce8f887360a533f0a25b0b34fb11f0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
真题
解题方法
6 . 设A、B分别为椭圆
的左、右顶点,椭圆长半轴的长等于焦距,且
为它的右准线.
(1)求椭圆的方程;
(2)设P为右准线上不同于点
的任意一点,若直线
分别与椭圆相交于异于A,B的点M、N,证明点B在以
为直径的圆内.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8429aec72d26401b12a55b8337261df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
(1)求椭圆的方程;
(2)设P为右准线上不同于点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e32f16d75ccb62a04970f861827fca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcaebaf8ceed245eba896f36d8ff14b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2022-11-09更新
|
746次组卷
|
4卷引用:2006年普通高等学校招生考试数学(理)试题(湖北卷)
2006年普通高等学校招生考试数学(理)试题(湖北卷)2006年普通高等学校招生考试数学(文)试题(湖北卷)(已下线)2023年高考全国乙卷数学(文)真题变式题21-23(已下线)2023年高考全国乙卷数学(理)真题变式题16-20
真题
解题方法
7 . 如图,双曲线
的离心率为
,
分别为左、右焦点,M为左准线与渐近线在第二象限内的交点,且
.
(2)设
和
是x轴上的两点过点A作斜率不为0的直线l,使得l交双曲线于C、D两点,作直线
交双曲线于另一点E.证明:直线
垂直于x轴.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f8f7e40ba386c0a9675896b52752d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c38928a92bc4b44ed3c9b89769f5372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcbd9c8d30288327581020717e62d388.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1d8e820de039970450591eea09c1d0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d41aab00bd44980657589a668a9a4e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
真题
解题方法
8 . 如图,过抛物线
的对称轴上任一点
作直线与抛物线交于
,
两点,点
是点
关于原点的对称点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/9f139a8e-ff9b-4ce6-929d-75c5af1e7cef.png?resizew=184)
(1)设点
分有向线段
所成的比为
,证明:
;
(2)设直线
的方程是
,过
,
两点的圆
与抛物线在点
处有共同的切线,求圆
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c2eb6221ac5ff075bd2430b8d6c03f.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/9f139a8e-ff9b-4ce6-929d-75c5af1e7cef.png?resizew=184)
(1)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8d810ea976b725e2e7bf864695be672.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76576264f7853ee62e989f1889425a20.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2022-11-09更新
|
551次组卷
|
3卷引用:2004 年普通高等学校招生考试数学(理)试题(湖南卷)
真题
解题方法
9 . 设直线l与椭圆
相交于A,B两点,l又与双曲线
相交于C、D两点,C、D三等分线段
.求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e78f1a9cc4dedc05c175ab99b288b9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1fa37c4c826b5dcfebe86ab6177906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
名校
解题方法
10 . 已知直线l1是抛物线C:x2=2py(p>0)的准线,直线l2:
,且l2与抛物线C没有公共点,动点P在抛物线C上,点P到直线l1和l2的距离之和的最小值等于2.
(1)求抛物线C的方程;
(2)点M在直线l1上运动,过点M作抛物线C的两条切线,切点分别为P1,P2,在平面内是否存在定点N,使得MN⊥P1P2恒成立?若存在,请求出定点N的坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c380567212748bedfb1955b6ca961155.png)
(1)求抛物线C的方程;
(2)点M在直线l1上运动,过点M作抛物线C的两条切线,切点分别为P1,P2,在平面内是否存在定点N,使得MN⊥P1P2恒成立?若存在,请求出定点N的坐标,若不存在,请说明理由.
您最近一年使用:0次
2022-11-08更新
|
748次组卷
|
5卷引用:山西省晋城市2018届高三上学期第一次模拟考试数学(理)试题
山西省晋城市2018届高三上学期第一次模拟考试数学(理)试题【全国百强校】山西省临汾第一中学2017-2018学年高二下学期期末考试数学(理)试题四川省成都市电子科技大学实验中学2020-2021学年高二上学期12月月考数学试题(已下线)11.4 直线与圆锥曲线的位置关系(已下线)重难点突破13 切线与切点弦问题 (五大题型)