如图,设椭圆
的左、右焦点分别为
,
,点
在椭圆上,
,
,
的面积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/3/0e842ce7-45c7-4abc-9789-aab6bcb218be.png?resizew=172)
(1)求该椭圆的标准方程.
(2)过该椭圆的右焦点
的直线
交椭圆于A、B两点,求当
的内切圆面积最大时直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed073d2f87fc08320c434c7ef6025814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db76d46fc6c21c1029066fe47955af97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df8816403d7f16b505ffc4a3574204d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/3/0e842ce7-45c7-4abc-9789-aab6bcb218be.png?resizew=172)
(1)求该椭圆的标准方程.
(2)过该椭圆的右焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ff8a5886e42095da57422c8777c10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
更新时间:2023-03-01 15:27:23
|
相似题推荐
解答题-证明题
|
适中
(0.65)
名校
【推荐1】已知椭圆
的离心率为
,若椭圆与圆
:
相交于M,N两点,且圆E在椭圆内的弧长为
.
(1)求椭圆的方程;
(2)过椭圆的上焦点作两条相互垂直的直线,分别交椭圆于A,B、C,D,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c9bebea391a1f9956dfcca98d9d1f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54c0fee20828d2f2acea134e270a6f37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44917f942c3fd36614f58d47b5fe1821.png)
(1)求椭圆的方程;
(2)过椭圆的上焦点作两条相互垂直的直线,分别交椭圆于A,B、C,D,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c888eba416ceca9d0b82e8cae3017846.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】如图:在直角坐标系
中,设椭圆
的左右两个焦点分别为
、
.过右焦点
与
轴垂直的直线
与椭圆C相交,其中一个交点为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/463456ca-b489-48ac-89dc-06f8df82bec6.png?resizew=170)
(1)求椭圆C的方程;
(2)设椭圆C的一个顶点为
,求点M到直线
的距离;
(3)过
中点的直线
交椭圆于P、Q两点,求
长的最大值以及相应的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](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/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d9b4a5f5334c153ddbefc763d8939ef.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/463456ca-b489-48ac-89dc-06f8df82bec6.png?resizew=170)
(1)求椭圆C的方程;
(2)设椭圆C的一个顶点为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f213e991614465959aac77292c9bf09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbad65b3d744b70da2480eee1cdb587.png)
(3)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8ad9e94d07405a6be585f81a0d623b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
您最近一年使用:0次
【推荐1】已知椭圆
:
的短轴长为2,离心率为
.
![](https://img.xkw.com/dksih/QBM/2022/5/26/2987762005155840/2991480855257088/STEM/a7f78906-1b50-472f-a03e-f0eb439e4028.png?resizew=264)
(1)求椭圆
的标准方程;
(2)如图,点
为椭圆
的上顶点,过点
作互相垂直的两条直线
(
的斜率为正数)和
,直线
与以短轴为直径的圆
和椭圆
分别相交于点
,
,直线
与圆
和椭圆
分别相交于点
,
,且
的面积是
面积的
倍,求直线
和
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://img.xkw.com/dksih/QBM/2022/5/26/2987762005155840/2991480855257088/STEM/a7f78906-1b50-472f-a03e-f0eb439e4028.png?resizew=264)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图,点
![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8dcc9f79fe5f07f25447aa442ee14ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0cf66e4d8a4f885a3fe9c7ac480d554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】已知圆
:
,
,T是圆M上任意一点,线段NT的垂直平分线
与半径MT相交于点Q,当点T运动时,记点Q的轨迹为曲线C.
(1)求曲线C的方程;
(2)已知点
,过
的直线GH交曲线C于G,H两点,记
,若
的最大值和最小值分别为
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/631f7628b52253649ad8b145b253c763.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39934fc48ac01ca0919aa140e7dea683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求曲线C的方程;
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1294434b22cb5133043a2270ae1c43f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55d12701014cf53071093e8739d089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90c8e9dda98c5b611655b342296fa652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77ab1256702aef4e9f1a5eb6c12ecc96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fbd67f60f04c278bdd867fdb3979dfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b6b09b60bf1bf8403c49bc17e365cd8.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知椭圆
的下顶点为
,右顶点为
,离心率
,抛物线
的焦点为
,
是抛物线
上一点,抛物线
在点
处的切线为
,且
.
(1)求直线
的方程;
(2)若
与椭圆
相交于
,
两点,且
,求
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.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/5de85df85401e7e8da683ea4a784963c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11c7110cd86ace4ccadf5ce01052332c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/6ef59919f69b93d9511001f32c5eaa64.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451281dcb65d54104b361979e5557b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
【推荐2】已知椭圆
的左右顶点
的坐标分别为
且椭圆E的离心率为
.
(1)求椭圆E的方程;
(2)过点
作直线l交椭圆E于P,Q两点,且点P位于x轴上方,记直线
的斜率分别为
.
①证明:
;
②设点Q关于x轴的对称点为
,求证直线
过x轴上一个定点,并求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0586ffe4bc516265086c6b5eafd1eed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆E的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ba2238d6afe0187534155dd9ac48c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e990f8a065b517a4353903abe94ef4df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
①证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80b04ce48c9ace43276552c77108126.png)
②设点Q关于x轴的对称点为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86380a6d6501f6504dcb4aa5e3099f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df356846992174e641898c61380af591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2cf4b11fe84c33c931919391e705c5.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知
是椭圆
的右焦点,
,原点O到直线MF的距离为
,点
在E上.
(1)求E的方程.
(2)过点F作直线与E交于A,B两点,直线MA,MB与y轴分别交于H,G两点,证明:H,G关于点
对称.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24550b13dbecf7d86c7054250e987274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e106f614e2e66bc05d7e38ea6042a370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe8530b8e246a9a5ec9fe3b9c347d5a.png)
(1)求E的方程.
(2)过点F作直线与E交于A,B两点,直线MA,MB与y轴分别交于H,G两点,证明:H,G关于点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edaef66a0582e95fb5c57a405acdea9a.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】已知椭圆
的离心率为
,过右焦点F与长轴垂直的直线与椭圆在第一象限相交于点M,
.
(1)求椭圆C的标准方程;
(2)斜率为1的直线l与椭圆相交于B,D两点,若以线段BD为直径的圆恰好过坐标原点,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4294843dc627c5063a09ab944b5dfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f78c38805c09dcfbcc42103308975a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd21197986501a84f77c3d7881657ad.png)
(1)求椭圆C的标准方程;
(2)斜率为1的直线l与椭圆相交于B,D两点,若以线段BD为直径的圆恰好过坐标原点,求直线l的方程.
您最近一年使用:0次