名校
解题方法
1 . 根据抛物线的光学性质可知,从抛物线的焦点发出的光线经该抛物线反射后与对称轴平行.已知抛物线C:
,如图,点F为C的焦点,过F的光线经拋物线反射后分别过点
,
.
(1)求C的方程;
(2)设点
,若过点
的直线与C交于R,T两点,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdfdbde5e45f33dd3eab3fcf45e796ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7790bf081318706b9962b6aba7784f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/10/c80cf00c-4b20-441f-9719-061653c773d5.png?resizew=121)
(1)求C的方程;
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b3126e09b4d8e177e618d0169dd98d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44bdbc62c678a23e5e7fc8c34ffbf257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce634840a967c7a7444c0b079538320.png)
您最近一年使用:0次
2 . 已知
在椭圆
上,
分别为
的左、右焦点.
(1)求椭圆
的离心率;
(2)若动点
均在
上,且
在
轴的两侧,求四边形
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246668e713de36a9e3af9b0d0d3ee9e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bb9c075a320b0fe23145061b1fb0f8.png)
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3 . 如图,在棱长为6的正方体
中,E,F分别为
,
的中点,平面
与棱
相交于点G.
(1)求
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/4/112cd67e-ff68-47df-8fa6-92d6d03a17f2.png?resizew=178)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27d797d94addf2ec4c37a305f1def37b.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
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4 . 已知
是抛物线C:
上一点,F是C的焦点,且
.
(1)求C的方程;
(2)记O为坐标原点,斜率为1的直线
与C交于A,B两点(异于点O),若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f802944fc08e97019f8ba692889d8bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d995dbb83ebd75c471e00f82b147f0c0.png)
(1)求C的方程;
(2)记O为坐标原点,斜率为1的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
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名校
解题方法
5 . 已知抛物线
的焦点为F,且A,B,C三个不同的点均在
上.
(1)若直线AB的方程为
,且点F为
的重心,求p的值;
(2)设
,直线AB经过点
,直线BC的斜率为1,动点D在直线AC上,且
,求点D的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a9efe4c27ce894634c9e4c737b5fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
(1)若直线AB的方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ba50e25f0d2099dce13f113685d233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acff98078cdd32804d8f1c4efbe2ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cda12642d59a5817e8990c43de20535.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7711afeb265550ead8321ea2a24d5.png)
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2024-01-18更新
|
609次组卷
|
4卷引用:青海省西宁市大通县2024届高三上学期期末数学(理)试题
名校
解题方法
6 . 如图1,在直角
中,
,
,
,D,E分别为边
,
的中点,将
沿
进行翻折,连接
,
得到四棱锥
(如图2),点F为
的中点.
翻折旋转所得几何体的表面积;
(2)当
为正三角形时,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1e038b4e76b3a368731d3331522b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
您最近一年使用:0次
2023-12-22更新
|
177次组卷
|
3卷引用:2024年普通高等学校招生伯乐马模拟考试(二)数学(理)试卷
名校
解题方法
7 . 已知椭圆
的焦距为
,离心率为
,椭圆的左右焦点分别为
、
,直角坐标原点记为
.设点
,过点
作倾斜角为锐角的直线
与椭圆交于不同的两点
、
.
(1)求椭圆的方程;
(2)设椭圆上有一动点
,求
的取值范围;
(3)设线段
的中点为
,当
时,判别椭圆上是否存在点
,使得非零向量
与向量
平行,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18704146ef2e010ebf1e70041d8766da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆的方程;
(2)设椭圆上有一动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f0da052f94c43ff2a16f70d38d55fc3.png)
(3)设线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddcc04a16303a22b623cdedba9efdc0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bad299e2782c072d27e1c54422cc8fc.png)
您最近一年使用:0次
2023-12-21更新
|
792次组卷
|
9卷引用:2024年普通高等学校招生伯乐马模拟考试(二)数学(理)试卷
2024年普通高等学校招生伯乐马模拟考试(二)数学(理)试卷上海市奉贤区2024届高三一模数学试题(已下线)专题03 圆锥曲线的方程(4)(已下线)专题18 圆锥曲线高频压轴解答题(16大题型)(练习)(已下线)专题06 平面向量(15区新题速递)(已下线)专题07 解析几何(三大类型题综合)15区新题速递(已下线)重难点14 圆锥曲线必考压轴解答题全归类【十一大题型】(举一反三)(新高考专用)-2(已下线)上海市奉贤区2024届高三一模数学试题变式题16-21(已下线)上海市高二下学期期末真题必刷04(压轴题)--高二期末考点大串讲(沪教版2020选修)
解题方法
8 . (1)求经过两点
,
的双曲线的标准方程;
(2)求经过两点
,
的椭圆的标准方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe47cabbc991709fe67404b143c89a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82112c702513be7e89b05b4917d130de.png)
(2)求经过两点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a731541b71ef6314ba57520935340db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4be16be2d67c0780fb2b1af77ec5c25a.png)
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名校
解题方法
9 . 已知抛物线
经过点
,直线
与抛物线相交于不同的A、
两点.
(1)求抛物线
的方程;
(2)如果
,证明直线
过定点,并求定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c73eeee75206e9fa425330f40d94e6f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee808a07c981406a44a69cb124792071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2023-12-16更新
|
1066次组卷
|
6卷引用:青海省西宁市海湖中学2023-2024学年高二下学期开学考试数学试卷
青海省西宁市海湖中学2023-2024学年高二下学期开学考试数学试卷福建省华安县第一中学2023-2024学年高二上学期第二次月考(12月)数学试题新疆阿勒泰地区2023-2024学年高二上学期期末联考数学试题(已下线)第三章:圆锥曲线的方程章末综合检测卷-【题型分类归纳】2023-2024学年高二数学同步讲与练(人教A版2019选择性必修第一册)(已下线)【一题多解】定点最值 代数几何广东省茂名市化州市2023-2024学年高二上学期期末教学质量监测数学试题
10 . 已知
,
是椭圆
的两个焦点,
,
为C上一点
(1)求椭圆C的标准方程;
(2)若P为C上一点,且
,求
的面积.
![](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/be112e60e2e0adcad51a2686ccdc42d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2644e9f73e5871db934fdafc431d675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4b5b3660e352c3fc3ede794022be9d.png)
(1)求椭圆C的标准方程;
(2)若P为C上一点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df6ec265fda4da82401ccd036f5ab5d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002ed1ebb2cb936e10ab478789f91c7c.png)
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2023-12-15更新
|
178次组卷
|
2卷引用:青海省西宁市部分学校2023-2024学年高二上学期期末联考数学试题