解题方法
1 . 已知椭圆
和双曲线
的焦距相同,且椭圆
经过点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/31/2931aeb7-5736-4cc8-92b8-f8fbb7089e45.png?resizew=376)
(1)求椭圆
的标准方程;
(2)如图1,椭圆
的长轴两个端点为
,垂直于
轴的直线
与椭圆
相交于
两点(
在
的上方),记
,求证:
为定值;
(3)如图2,已知过
的动直线与椭圆
相交于
两点,求证:直线
的交点在一条定直线上运动.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c118b51ab426bc1c1b56179094f146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea74737939c0f94c91229a7098f36ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ffbc4c14ab3dfb4cad27ffadb516687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/31/2931aeb7-5736-4cc8-92b8-f8fbb7089e45.png?resizew=376)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)如图1,椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d71f015144ffaf1faec94a259b4a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47b6c9f2321a71fe74951a89801906d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b881044b5c73db6fcce110525741b02.png)
(3)如图2,已知过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a21d7d92e58bf612ac018314ef14c6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c008e6e3eac674fd5e774ee0ad357c.png)
您最近一年使用:0次
2 . 已知椭圆
和双曲线
的焦距相同,且椭圆
经过点
.
![](https://img.xkw.com/dksih/QBM/2021/11/6/2845673933168640/2847134204764160/STEM/a3fb0967-e10a-402b-8420-d1487e694c86.png)
(1)求椭圆
的标准方程;
(2)如图1,椭圆
的长轴两个端点为
,垂直于
轴的直线
与椭圆
相交于
两点(
在
的上方),记
,求证:
为定值,并求
的最小值;
(3)如图2,已知过
的动直线与椭圆
相交于
两点,求证:直线
的交点在一条定直线上运动.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c118b51ab426bc1c1b56179094f146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea74737939c0f94c91229a7098f36ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59a7a78a0cb55d2396f7213432a86b86.png)
![](https://img.xkw.com/dksih/QBM/2021/11/6/2845673933168640/2847134204764160/STEM/a3fb0967-e10a-402b-8420-d1487e694c86.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(2)如图1,椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d71f015144ffaf1faec94a259b4a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47b6c9f2321a71fe74951a89801906d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b881044b5c73db6fcce110525741b02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af421068e829b660c1bb9ba3b8df798e.png)
(3)如图2,已知过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6f88f79c5c3ea53e4afd8f8010e0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c008e6e3eac674fd5e774ee0ad357c.png)
您最近一年使用:0次
2021-11-08更新
|
651次组卷
|
3卷引用:四川省叙永第一中学校2022-2023学年高二上学期第四学月教学质量检测数学(理)试题
名校
解题方法
3 . 已知椭圆
,经过点
,且离心率为
.
(1)求椭圆
的方程;
(2)若直线
过椭圆
的左焦点
交
于
,
两点,线段
的中点为
,
的中垂线与
轴、
轴分别交于
、
两点,试问:是否存在直线
,使得
(其中
是坐标原点)?若存在,求出直线
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2de52259b426acb42761fec59a7748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](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/f5076289823db419f94e9c0c8f4aafd9.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec04d124a0a51e4a8668df2dde4586f.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
2020-07-25更新
|
566次组卷
|
6卷引用:四川省泸州市2020届高三(2017级)第四次诊断性考试(临考冲刺模拟)文科数学试题
四川省泸州市2020届高三(2017级)第四次诊断性考试(临考冲刺模拟)文科数学试题四川省泸州市2020届高三数学临考冲刺模拟试卷(文科)(四模)试题海南省海口市第四中学2021届高三上学期期中考试数学试题(已下线)重难点5 解析几何-2021年高考数学【热点·重点·难点】专练(山东专用)(已下线)黄金卷14 【赢在高考·黄金20卷】备战2021年高考数学全真模拟卷(广东专用)西藏林芝市第二高级中学2021届高三上学期第四次月考数学(文)试题
名校
解题方法
4 . 已知椭圆
的左、右焦点分别是
,
,A,B分别是其左、右顶点,点P是椭圆C上任一点,且
的周长为6,若
面积的最大值为
.
(1)求椭圆C的方程;
(2)若过点
且斜率不为0的直线交椭圆C于M,N两个不同的点,证明:直线AM与BN的交点在一条定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.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/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(1)求椭圆C的方程;
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
您最近一年使用:0次
2020-08-16更新
|
1455次组卷
|
19卷引用:2020届四川省泸县第五中学高三下学期第一次在线月考数学(文)试题
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