解题方法
1 . 已知椭圆
,离心率
,且过点
,
(1)求椭圆方程;
(2)
以
为直角顶点,边
与椭圆交于
两点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f663b1f65678d7a4706da3d0727be4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8328c021c9a815bf28a443563931aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b782445ccf96d95e62887fa1bc53289a.png)
(1)求椭圆方程;
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bfdab8b0494d22a788fd0a34258abd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2016-12-03更新
|
1353次组卷
|
5卷引用:2015届浙江省东阳市高三5月模拟考试理科数学试卷1
2 . 若椭圆
经过点
,且椭圆的长轴长是焦距的两倍,则![](https://img.xkw.com/dksih/QBM/2015/5/11/1572102172803072/1572102178209792/STEM/e9f4bc11705c44a8b257f79285056efe.png?resizew=25)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://img.xkw.com/dksih/QBM/2015/5/11/1572102172803072/1572102178209792/STEM/aebb25ce7b7c4eb3aeea766c77c5cd28.png?resizew=55)
![](https://img.xkw.com/dksih/QBM/2015/5/11/1572102172803072/1572102178209792/STEM/e9f4bc11705c44a8b257f79285056efe.png?resizew=25)
您最近一年使用:0次
3 . 如图所示,椭圆
与直线
相切于点
.
![](https://img.xkw.com/dksih/QBM/2015/5/11/1572101959180288/1572101965053952/STEM/bf1c161009924d60a01de837f12140ae.png?resizew=226)
(1)求
满足的关系式,并用
表示点
的坐标;
(2)设
是椭圆的右焦点,若
是以
为直角顶点的等腰直角三角形,求椭圆
的标准方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eda3162a70d9042a13f784f1c2109c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://img.xkw.com/dksih/QBM/2015/5/11/1572101959180288/1572101965053952/STEM/bf1c161009924d60a01de837f12140ae.png?resizew=226)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4139b091e9dc432b267ff68420c77de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
解题方法
4 . 设椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
的左、右焦点分别为
,上顶点为A,过A与
垂直的直线交x轴负半轴于Q点,且
.
(1)求椭圆C的离心率;
(2)若过A、Q、
三点的圆恰好与直线
相切,求椭圆C的方程;
(3)过
的直线l与(2)中椭圆交于不同的两点M、N,则
的内切圆的面积是否存在最大值?若存在,求出这个最大值及此时的直线方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5c48d4b1d34e35c4237229f39345c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266535f1678c788b4dddf089a38d0868.png)
(1)求椭圆C的离心率;
(2)若过A、Q、
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d202fa5d5c7abf2020374eabb93de5.png)
(3)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ea1c3fe8431260ecb8dffcdae8d570.png)
您最近一年使用:0次
2011·浙江·三模
5 . 已知
,
是椭圆
的左,右顶点,
,过椭圆
的右焦点
的直线交椭圆于点
,
,交直线
于点
,且直线
,
,
的斜率成等差数列,
和
是椭圆上的两动点,
和
的横坐标之和为2,
的中垂线交
轴于
点.
(1)求椭圆
的方程;
(2)求
的面积的最大值.
![](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/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852b303689c31189cd47bb4a3220f9fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe1a6ce0b35896c8a1c687a4376e71f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d4aa8deeb53a8bf76532a4b3a1ca7ae.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/18/bcb86a57-ad9b-4a8a-867d-3566c1e61e60.png?resizew=206)
您最近一年使用:0次
2013·浙江·一模
解题方法
6 . 如图,F1,F2是离心率为
的椭圆C:
(a>b>0)的左、右焦点,直线l:x=-
将线段F1F2分成两段,其长度之比为1 : 3.设A,B是C上的两个动点,线段AB的中垂线与C交于P,Q两点,线段AB的中点M在直线l上.
![](https://img.xkw.com/dksih/QBM/2014/1/16/1571484325347328/1571484331106304/STEM/80c9acd819fe4187843cbc39ddc4133f.png?resizew=258)
(Ⅰ) 求椭圆C的方程;
(Ⅱ) 求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/2014/1/16/1571484325347328/1571484331106304/STEM/80c9acd819fe4187843cbc39ddc4133f.png?resizew=258)
(Ⅰ) 求椭圆C的方程;
(Ⅱ) 求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dcbf1ba7f9bc7d6bff898f3274b1c85.png)
您最近一年使用:0次
2012·浙江温州·三模
名校
7 . 已知椭圆的中心在原点,焦点在
轴上,经过点
,离心率
.
(Ⅰ)求椭圆的方程;
(Ⅱ)椭圆的左、右顶点分别为
、
,点
为直线
上任意一点(点
不在
轴上),
连结
交椭圆于
点,连结
并延长交椭圆于
点,试问:是否存在
,使得
成立,若存在,求出
的值;若不存在,说明理由.
![](https://img.xkw.com/dksih/QBM/2012/8/8/1570958440194048/1570958445699072/STEM/59f2ff7a7dea484f8ac6b7a81da8ce1b.png?resizew=14)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e67baac84cf5c95d06d50c36cab7c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
(Ⅰ)求椭圆的方程;
(Ⅱ)椭圆的左、右顶点分别为
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/2012/8/8/1570958440194048/1570958445699072/STEM/59f2ff7a7dea484f8ac6b7a81da8ce1b.png?resizew=14)
连结
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba77f1aaf23271ea2a546e77c6f53984.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://img.xkw.com/dksih/QBM/2012/8/8/1570958440194048/1570958445699072/STEM/d24ae4fec6784426a754b55bdb14c839.png?resizew=236)
您最近一年使用:0次
2011·浙江金华·三模
解题方法
8 . 已知
是椭圆
上一点,
是椭圆的两个焦点,且满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba7267be8fb3db5ec612fb9d8950239.png)
(I)求椭圆方程;
(Ⅱ)设
,
是椭圆上任两点,且直线
,
的斜率分别为
,若存在常数
使
,求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26e951d6d2369e8da79a793a93a66a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea101f7367e74bc793432bd09e96ce6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba7267be8fb3db5ec612fb9d8950239.png)
(I)求椭圆方程;
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c407500c3f3d395fdfdc366851ef3fac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf5909a2b109d048bd7c7a0377a769f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef53d9c13b95ca410ab1ff05a43bb5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
2011·浙江杭州·一模
解题方法
9 . 如图,
,
是离心率为
的椭圆的左、右顶点,
,
是该椭圆的左、右焦点,
,
是直线
上两个动点,连接
和
,它们分别与椭圆交于点
,
两点,且线段
恰好过椭圆的左焦点
.当
时,点
恰为线段
的中点.
![](https://img.xkw.com/dksih/QBM/2011/3/31/1570096897703936/1570096903282688/STEM/0c32387f067e4c6b9fef3e6973866fbc.png?resizew=380)
(1)求椭圆的方程;
(Ⅱ)判断以
为直径的圆与直线
位置关系,并加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a089c207e39a24d0d82aa853ac2bbb8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6cc3789c0e9b7d1226aa0de3327599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/2011/3/31/1570096897703936/1570096903282688/STEM/0c32387f067e4c6b9fef3e6973866fbc.png?resizew=380)
(1)求椭圆的方程;
(Ⅱ)判断以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
您最近一年使用:0次
2010·浙江宁波·三模
10 . 已知椭圆
的右焦点恰好是抛物线
的焦点
,点
是椭圆
的右顶点.过点
的直线
交抛物线
于
两点,满足
,其中
是坐标原点.
(1)求椭圆
的方程;
(2)过椭圆
的左顶点B作y轴平行线BQ,过点N作x轴平行线NQ,直线BQ与NQ相交于点Q.若
是以MN为一条腰的等腰三角形,求直线MN的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e98f34b73e3260e4d6214b8a81168a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685e48557e8850415a3e38fdab278dac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](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/ad57e3727b7bbd795b05332fbf9649e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/415dd9723585c7e447f346a7eebc6d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c6cd203573cf97722b98e848e58e71.png)
您最近一年使用:0次