名校
解题方法
1 . 已知椭圆
过点
,且以长轴和短轴为对角线的四边形面积为
.
(1)求
的方程;
(2)已知椭圆
,在椭圆
上任取三点
,是否存在
使得
与椭圆
相切于三角形三边的中点,若存在,求出
的值,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/846b4323617e523c17011dd8ade8765a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a87a333250e5f79b2db9491fdb0bca.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d713c95fc7a6cad74df7fabdccd2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28855a0db693584aabac1df99dfade3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2022-09-03更新
|
642次组卷
|
2卷引用:浙江省杭州学军中学2022-2023学年高二上学期期中模拟数学试题
名校
解题方法
2 . 已知椭圆
,过动点
的直线
交
轴于点
,交椭圆于点
,
(点
在第一象限),且
是线段
的中点,过点
作
轴的垂线交椭圆于另一点
,延长
交椭圆于点
.点
在椭圆上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/30/0f5699bd-42d6-48a2-a285-4943dbc4767a.png?resizew=247)
(1)求椭圆的焦距;
(2)设直线
的斜率为
,直线
的斜率为
,证明:
为定值;
(3)求直线
斜率的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a032dd225bdd793172220c494c2054e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cef02426ce3fc90f682e5842601d389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8305c4ffbf876642440c3d28e91e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6435f8aebf11d942f45fd02acbb5802d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/30/0f5699bd-42d6-48a2-a285-4943dbc4767a.png?resizew=247)
(1)求椭圆的焦距;
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8305c4ffbf876642440c3d28e91e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7e08d5c04f0431fb57b33a01717b599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ded6dbecb802a8a296e767c4b41ea4.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
名校
解题方法
3 . 已知椭圆
:
的短轴长为2,左右焦点分别为
,
,
为椭圆
上一点,且
轴,
.
(1)求椭圆
的方程;
(2)已知直线
(
且
)与椭圆
交于
,
两点,点
关于原点的对称点为
、关于
轴的对称点为
,直线
与
轴交于点
,若
与
的面积相等,求
的值.
![](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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5c5c9104cd65f35b1349d533e04b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa3f5e0065230d8fb629bfde85951d9.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea629922b86da23efeb8aa83d2b91ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823ab696d27d40920c39b8c910789380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d364ffe09abd0f6022147d130c82dccb.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57831b59ea828a088ed9daec8babb774.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3c5f5006941a576a60a9a0a8a40f3f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2022-05-13更新
|
1534次组卷
|
6卷引用:浙江省杭州学军中学2022-2023学年高三上学期期中数学试题
名校
解题方法
4 . 已知椭圆E:
的离心率为
,且点
在椭圆E上,A为椭圆E的右顶点,O为坐标原点,过点A的直线l与椭圆E的另外一个交点为P,线段PA的中点为M.
(1)若直线l的斜率为1,求直线OM的斜率;
(2)若
,求三角形OPM的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef233ad3db01fa3ce9ee94eaad8e64e.png)
(1)若直线l的斜率为1,求直线OM的斜率;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29de536b7bb4bd0d462142e8bfd297da.png)
您最近一年使用:0次
名校
解题方法
5 . 已知点
是椭圆E:
一点,且椭圆的离心率为
.
![](https://img.xkw.com/dksih/QBM/2022/4/20/2962120046796800/2962330949427200/STEM/0407eee5e94242b186ebcc56992f784f.png?resizew=187)
(1)求此椭圆E方程;
(2)设椭圆的左顶点为A,过点A向上作一射线交椭圆E于点B,以AB为边作矩形ABCD,使得对边CD经过椭圆中心O,求矩形ABCD面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0471cd3dccabaef113cd5761544d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://img.xkw.com/dksih/QBM/2022/4/20/2962120046796800/2962330949427200/STEM/0407eee5e94242b186ebcc56992f784f.png?resizew=187)
(1)求此椭圆E方程;
(2)设椭圆的左顶点为A,过点A向上作一射线交椭圆E于点B,以AB为边作矩形ABCD,使得对边CD经过椭圆中心O,求矩形ABCD面积的最大值.
您最近一年使用:0次
6 . 椭圆、双曲线、抛物线三种圆锥曲线有许多相似性质.比如三种曲线都可以用如下方式定义(又称圆锥曲线第二定义):到定点的距离与到定直线的距离之比为常数e的点的轨迹为圆锥曲线.当
为椭圆,当
为抛物线,当
为双曲线.定点为焦点,定直线为对应的准线,常数e为圆锥曲线的离心率.依据上述表述解答下列问题.
已知点
,直线
动点
满足到点F的距离与到定直线l的距离之比为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/2022/4/15/2958536665874432/2961538140667904/STEM/e6022d0b-907b-40f7-9864-a35e4389edc3.png?resizew=164)
![](https://img.xkw.com/dksih/QBM/2022/4/15/2958536665874432/2961538140667904/STEM/cafe841f-59f3-485f-a431-ba4b91e1b685.png?resizew=182)
(1)求曲线
的轨迹方程;
(2)在抛物线中有如下性质:如图,在抛物线
中,O为抛物线顶点,过焦点F的直线交抛物线与A,B两点,连接
,
并延长交准线l与D,C,则以
为直径的圆与
相切于点F,以
为直径的圆与
相切于
中点.那么如图在曲线E中是否具有相同的性质?若有,证明它们成立;若没有,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42b7ac29311c13aa538f3f48cb513b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09dbcaa127022fbd6b6f13345196408a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58c44592477e5cab15cd165ff9b3d78.png)
已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ba2238d6afe0187534155dd9ac48c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495bb3e5a3a9d35f5c9f0cf1f5d51876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/2022/4/15/2958536665874432/2961538140667904/STEM/e6022d0b-907b-40f7-9864-a35e4389edc3.png?resizew=164)
![](https://img.xkw.com/dksih/QBM/2022/4/15/2958536665874432/2961538140667904/STEM/cafe841f-59f3-485f-a431-ba4b91e1b685.png?resizew=182)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)在抛物线中有如下性质:如图,在抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
2022-04-19更新
|
604次组卷
|
2卷引用:浙江省衢温“5+1”联盟2021-2022学年高二下学期期中联考数学试题
名校
解题方法
7 . 已知椭圆
的离心率为
,圆
与
轴相切,
为坐标原点.
(1)求椭圆
的方程;
(2)设椭圆
的右焦点为
,过点
的直线
交椭圆于
两点,是否存在直线
使
的面积为
?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/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d142da6c28c56cdb6b9a37ff8e046e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设椭圆
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b2215de6d4986954c95a5b711fd05aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-01-04更新
|
1968次组卷
|
4卷引用:浙江省杭州“六县九校”联盟2021-2022学年高二下学期期中联考数学试题
浙江省杭州“六县九校”联盟2021-2022学年高二下学期期中联考数学试题福建省泉州市城东中学2021-2022学年高二下学期期中考试数学试题衡水金卷2021-2022学年度高三一轮复习摸底测试卷数学(二)(已下线)专题30 圆锥曲线中的存在性问题- 2022届高考数学一模试题分类汇编(新高考卷)
8 . 已知椭圆
经过
.
(1)求椭圆
的方程;
(2)若直线
交椭圆
于不同两点
,
,
是坐标原点,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0fe9059acc47d2447576e1260c4622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf6117820e45d819c28b5562a6abf12.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa3227349546a6cc56ab8a3c3ee3057.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ed6bee57f4526320197d6a7474386f.png)
您最近一年使用:0次
2022-12-28更新
|
1675次组卷
|
25卷引用:【全国百强校】浙江省嘉兴市第一中学、湖州中学2018-2019学年高二下学期期中考试数学试题
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9 . 已知椭圆
,
,
为左、右焦点,直线
过
交椭圆于
,
两点.
(1)若直线
垂直于
轴,求
;
(2)当
时,
在
轴上方时,求
、
的坐标;
(3)若直线
交
轴于
,直线
交
轴于
,是否存在直线
,使得
,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/c763113a1fc48e8acc83787b8cd24eec.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/0f85fca60a11e1af2bf50138d0e3fe62.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)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd54b527d14c877bed6de7ef490390c.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbad65b3d744b70da2480eee1cdb587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6481bdb14db168814440057c358b47b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2022-10-16更新
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812次组卷
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12卷引用:浙江省杭州市第十四中学2022-2023学年高二下学期阶段性测试(期中)数学试题
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名校
解题方法
10 . 如图,已知圆G:
经过椭圆
的右焦点F及上顶点B,过圆外一点
倾斜角为
的直线
交椭圆于C,D两点.
![](https://img.xkw.com/dksih/QBM/2021/12/12/2871124853809152/2878618383073280/STEM/5dbf94c8-9c1b-4499-9497-8cf44d984204.png?resizew=202)
(1)求椭圆的离心率;
(2)若右焦点F在以线段CD为直径的圆E的外部,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4898c2a76e3944ba18b64eb96017966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b266eebef1e71fa496364374ede6e0e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3b9a20c31e397ae1dc8a44baf7de91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/2021/12/12/2871124853809152/2878618383073280/STEM/5dbf94c8-9c1b-4499-9497-8cf44d984204.png?resizew=202)
(1)求椭圆的离心率;
(2)若右焦点F在以线段CD为直径的圆E的外部,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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