1 . 如图,在平面直角坐标系中,
和
是
轴上关于原点对称的两个点,过点
倾斜角为
的直线
与抛物线
交于
两点,且
.
为
的焦点,求证:
;
(2)过点
作
轴的垂线,垂足为
,若
,求直线
的方程.
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08136e6bc876f29a13d1204d9d621db.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/fea0b6471289760543596f5f45aa43ae.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14cc1572ca21da2e3271484f127a5094.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2024-06-03更新
|
512次组卷
|
3卷引用:浙江省绍兴市第一中学2024届高三下学期5月模拟数学试题
名校
解题方法
2 . 已知动点
到
的距离与点
到直线
:
的距离相等.
(1)求动点
的轨迹方程;
(2)若过点
且倾斜角为60°的直线与动点
的轨迹交于
,
两点,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1853ab48dc3a6a94d7bbbb317cdb95a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92002afa0b414eae387a91207c629398.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2022-09-29更新
|
898次组卷
|
3卷引用:浙江省杭州第四中学吴山校区2021-2022学年高二上学期期末数学试题
浙江省杭州第四中学吴山校区2021-2022学年高二上学期期末数学试题(已下线)第三章 圆锥曲线的方程(单元测试)-【上好课】高二数学同步备课系列(人教A版2019选择性必修第一册)山东省滕州市第五中学2023-2024学年高二上学期第二次单元检测(1月)数学试题
名校
解题方法
3 . 已知
是抛物线
的焦点,点
是抛物线上横坐标为2的点,且
.
![](https://img.xkw.com/dksih/QBM/2021/11/24/2858162848989184/2859839601786880/STEM/b519f2118fdd43929e39ac30d6351e50.png?resizew=186)
(1)求抛物线的方程;
(2)设直线
交抛物线
于
两点,若
,且弦
的中点在圆
上,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1584d07b1e2ddc64349f0f5940f3a3e.png)
![](https://img.xkw.com/dksih/QBM/2021/11/24/2858162848989184/2859839601786880/STEM/b519f2118fdd43929e39ac30d6351e50.png?resizew=186)
(1)求抛物线的方程;
(2)设直线
![](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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e00ad067ceaf3a8c0452e5cd52a506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55200e840ea42d96f10038dea7cee5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2021-11-26更新
|
1219次组卷
|
5卷引用:浙江省9+1高中联盟2021-2022学年高三上学期期中联考数学试题
浙江省9+1高中联盟2021-2022学年高三上学期期中联考数学试题(已下线)综合检测卷(知识达标卷)-【一堂好课】2021-2022学年高二数学上学期同步精品课堂(人教A版2019选择性必修第一册)(已下线)考点42 圆锥曲线中的范围与最值问题-备战2022年高考数学典型试题解读与变式(已下线)押全国卷(理科)第20题 圆锥曲线-备战2022年高考数学(理)临考题号押题(全国卷)河北省百师联盟2024届高三上学期开学考试数学试题
名校
解题方法
4 . 已知抛物线
的焦点为
,点
是曲线
上一点.
(1)若
,求点
的坐标;
(2)若直线
与抛物线
交于
两点,且以
为直径的圆过点
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c099353b1912dc6e42aae33241af2c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d00a5df9d281dd4e1e45bf6a4d6fb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c153027427477bcd0a7228b14ce96cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
您最近一年使用:0次
5 . 已知抛物线
的焦点为
为
上异于原点的任意一点,过
作直线
的垂线,垂足为
为
轴上点.
且四边形
为平行四边形.直线
与抛物线
的另一个交点分别为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b923076e631c8bee640d416c052063a.png)
![](https://img.xkw.com/dksih/QBM/2022/4/13/2957151146737664/2960207917064192/STEM/3858c9f1-636e-4e39-ae90-a8b308dbe204.png?resizew=185)
(1)求抛物线
的方程;
(2)求三角形
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df40ba57bb5819b4aaa38d514500052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e74f1355856a3b50f05f83b1bbcf6407.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/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1faa4275fe11e7e4ea95161602b584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b53ce164b39cc56f25a6332ed644105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba3055f0f202006426b50f5e5bf34e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7681ce1484d354345ade98ef7bfb6836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b923076e631c8bee640d416c052063a.png)
![](https://img.xkw.com/dksih/QBM/2022/4/13/2957151146737664/2960207917064192/STEM/3858c9f1-636e-4e39-ae90-a8b308dbe204.png?resizew=185)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
您最近一年使用:0次
6 . 已知椭圆
的长轴长为4,离心率为
,一动圆
过椭圆
上焦点
,且与直线
相切.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/35f90e3f-67cb-41d4-9d8c-4e1e2d74b821.png?resizew=230)
(1)求椭圆
的方程及动圆圆心轨迹
的方程;
(2)过
作两条互相垂直的直线
,
,其中
交椭圆
于
,
两点,
交曲线
于
,
两点,求四边形
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4ab0677015587e151ad5c9ef299772e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/35f90e3f-67cb-41d4-9d8c-4e1e2d74b821.png?resizew=230)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/99393efa04579f3db5cf4f7e319f0440.png)
您最近一年使用:0次
2021-12-08更新
|
1204次组卷
|
6卷引用:浙江省2021届高三下学期高考模拟(一)数学试题
浙江省2021届高三下学期高考模拟(一)数学试题浙江省路桥中学2021届高三下学期数学综合练习试题(五)浙江省舟山市2020-2021学年高二下学期期末数学试题(已下线)专题11.平面解析几何(解答题)-《2022届复习必备-2021届浙江省高考冲刺数学试卷分项解析》(已下线)第三章 圆锥曲线的方程(选拔卷)-【单元测试】2021-2022学年高二数学尖子生选拔卷(人教A版2019选择性必修第一册)(已下线)专题9-3 圆锥曲线压轴大题五个方程框架十种题型-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)
解题方法
7 . 已知抛物线:
,焦点为F,
为
上的一个动点,
是
在点A处的切线,点P在
上且与点A不重合.直线PF与Γ交于B、C两点,且
平分直线AB和直线AC的夹角.
(1)求
的方程(用
表示);
(2)若从点F发出的光线经过点A反射,证明:反射光线平行于x轴;
(3)若点A坐标为
,求点P坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32e577ae1f4449efbd64c1199efe7a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23cb0c85ef0ac4d8722bba9fde0a851c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8750c7a9d012d136a878dc8f4233dfb7.png)
(2)若从点F发出的光线经过点A反射,证明:反射光线平行于x轴;
(3)若点A坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76678d7fed19144e94bb7c0bd6dba6d9.png)
您最近一年使用:0次
8 . 已知动点
到直线
的距离与它到点
的距离之差为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
(1)求点
的轨迹方程,并写出焦点坐标和准线方程;
(2)若曲线的准线与
轴的交点为
,点
在曲线
上,且
,求
的面积;
(3)若过点
的直线交曲线于
两点,求证:以
为直径的圆过原点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d85352a53f52bd2aab8985458c7562.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2712c426dd3d363afab62018aa5422b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若曲线的准线与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e67e03bcd014d62bb3f8366b4b0bc0f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb73d71d7941459e9a56212eca0aff5.png)
(3)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bacfc149ede71417fa599c21b5a84cb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
9 . 已知椭圆
的左、右焦点分别为
,
,右顶点为点
,点
的坐标为
,延长线段
交椭圆于点
,
轴.
(1)求椭圆的离心率;
(2)设抛物线
的焦点为
,
为抛物线上一点,
,直线
交椭圆于
,
两点,若
,求椭圆的标准方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed6b9540857e386651e191a0a5b5a98.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c8f7dc8509f4194eae9709b9d67ede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b85b7fea69161055ff26e549088c606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9a7ab181883910f06f7fbecc6ea25d.png)
(1)求椭圆的离心率;
(2)设抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eba2e14dd3d24954936142d3e411bf43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9a286eff1c51566e9f842c004cd27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.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/5105c77358b3f7c88efe1857f8084cf3.png)
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解题方法
10 . 如图,已知点P在直线l:
上,A,B为抛物线C:
上任意两点,PA,PB均与抛物线C相切,直线AB与直线l交于点Q,过抛物线C的焦点F作AB的垂线交直线l于点K.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/22/e16b222d-fa45-4d97-8606-4ed702185d57.png?resizew=224)
(1)若点A到F的距离比到直线l的距离小1,求抛物线C的方程;
(2)在(1)的条件下,当
最小时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/22/e16b222d-fa45-4d97-8606-4ed702185d57.png?resizew=224)
(1)若点A到F的距离比到直线l的距离小1,求抛物线C的方程;
(2)在(1)的条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc6d22a856a7378063b277eb9d33b2a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eedd1e9f48169405a92eef2668a878e.png)
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