已知椭圆
的离心率为
,且在
轴上的顶点分别为
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/fcea701c-41ca-4a54-aac5-d17e3facf43f.png?resizew=184)
(1)求椭圆的方程;
(2)若直线
与
轴交于点
,点
为直线
上异于点
的任一点,直线
分别与椭圆交于
点,试问直线
能否通过椭圆的焦点?若能,求出
的值,若不能,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3de32e9600fe1f96dde546a4be74cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c72762328d6e65c9c06f8a3d6fa1abf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/fcea701c-41ca-4a54-aac5-d17e3facf43f.png?resizew=184)
(1)求椭圆的方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3315776ad594712e381c3dc4f9eeece2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.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/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/941580b384bf5aa122b56dec5f0e5cb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
更新时间:2020-05-01 06:56:29
|
相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】如图,椭圆
的右顶点为
,左、右焦点分别为
、
,过点
且斜率为
的直线与
轴交于点
,与椭圆
交于另一个点
,且点
在
轴上的射影恰好为点
.
![](https://img.xkw.com/dksih/QBM/2020/4/30/2452895087460352/2454058226049024/STEM/c786dac634894968bbbe6d91bb99c7fa.png?resizew=137)
(1)求点
的坐标;
(2)过点
且斜率大于
的直线与椭圆交于
两点
,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.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/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://img.xkw.com/dksih/QBM/2020/4/30/2452895087460352/2454058226049024/STEM/c786dac634894968bbbe6d91bb99c7fa.png?resizew=137)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78bdcffa6a36657d661e4a11e9359585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8542ab3ba6afd04d73e9cfd91b1a786d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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解题方法
【推荐2】如图,已知
为坐标原点,椭圆C:
的左、右焦点分别为
、
点
是椭圆
的上顶点,
是等腰直角三角形,点
是椭圆
上一点,直线
交
轴于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/30/b78c5800-b5ff-4a6c-baff-bf278c1c4f1f.png?resizew=323)
(1)求椭圆
的方程;
(2)若点
与点
关于
轴对称,直线
交
轴于点
,点
且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c9076eac6ffd1a800382e0f224079a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdadd04d45b7355f787f2c262f7dded0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b325753020ddc1873deb0cfddd733d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/30/b78c5800-b5ff-4a6c-baff-bf278c1c4f1f.png?resizew=323)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](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/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc11269b450ef63f34cfde5f966246be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a12a125982972479eec216e903aad3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8112f9185c7d48b015d9cd0525616b31.png)
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解题方法
【推荐1】已知椭圆E:
(
)的焦距为
,直线
:
与x轴的交点为G,过点
且不与x轴重合的直线
交E于点A,B.当
垂直x轴时,
的面积为
.
(1)求E的方程;
(2)若
,垂足为C,直线
交x轴于点D,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a29ba49963134a7232fa8574105fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e24e9da4baf5f37f723a7577d2cb30f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb57d84f9bbcb3e30d4ce7e2e1e8604.png)
(1)求E的方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d67a45a792fac0a61d30c5b6bd0aac0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91000047526f8a5bde1e65acc7a94f44.png)
您最近一年使用:0次
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适中
(0.65)
名校
解题方法
【推荐2】已知定圆
,动圆M过点
,且和圆A相切.
(1)求动圆圆心M的轨迹E的方程;
(2)设不垂直于x轴的直线l与轨迹E交于不同的两点P、Q,点
.若P、Q、N三点不共线,且
.证明:动直线PQ经过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db913f194627b21fae0c9ceaf40033.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/513eafd10fa1ec0196562865517e0b09.png)
(1)求动圆圆心M的轨迹E的方程;
(2)设不垂直于x轴的直线l与轨迹E交于不同的两点P、Q,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/343a7ab6571ec674d8ec3dd5492fccaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22871505498b73670d0ee432ba402631.png)
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