分别写出满足下列条件的椭圆的标准方程:
(1)焦距为4,且经过点
;
(2)求经过点
和点
的椭圆方程.
(1)焦距为4,且经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dba0ddcdf6ed46447b5d4885674700a9.png)
(2)求经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bddd5d20576fb15ced9e028d965e708.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac101eab8342edcef93ae13226dbf45.png)
2024高二上·全国·专题练习 查看更多[2]
(已下线)3.1.1 椭圆及其标准方程【第一练】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)2.2.1 椭圆的标准方程(十三大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)
更新时间:2024-02-02 16:34:18
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【推荐1】已知椭圆C:
+
=1,过A(2,0),B(0,1)两点.
(1)求椭圆C的方程及离心率;
(2)设P为第三象限内一点且在椭圆C上,直线PA与y轴交于点M,直线PB与x轴交于点N,求四边形ABNM的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7355be4fcbc3130a5951364a3be76d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5268413295580cfda0755ab458b36b64.png)
(1)求椭圆C的方程及离心率;
(2)设P为第三象限内一点且在椭圆C上,直线PA与y轴交于点M,直线PB与x轴交于点N,求四边形ABNM的面积.
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【推荐2】已知椭圆
:
(
)的左、右顶点分别为
、
,焦距为2,点
为椭圆上异于
、
的点,且直线
和
的斜率之积为
.
(1)求
的方程;
(2)设直线
与
轴的交点为
,过坐标原点
作
交椭圆于点
,试探究
是否为定值,若是,求出该定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78fd95f89dec2d373fa57f02acd739f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f25b24f54a5faaf09a84a58ff6e0d47f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8a3134f1830d688947537c64f350723.png)
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【推荐1】(1)已知椭圆C的两焦点分别为
,且经过点
,求椭圆C的标准方程.
(2)求与双曲线
有相同渐近线,且右焦点为
的双曲线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/871868260c78a20767eae39bcdb97476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59a7a78a0cb55d2396f7213432a86b86.png)
(2)求与双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c99580b2a33da8968f0f7f86b89492e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b7ac31193004dcb7a71e8f657ad897.png)
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解题方法
【推荐2】求满足下列条件的椭圆的标准方程:
(1)焦点在y轴上,焦距是4,且经过点
;
(2)离心率为
,且椭圆上一点到两焦点的距离之和为26.
(1)焦点在y轴上,焦距是4,且经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/367213d6e7384ace581d4f36f684c998.png)
(2)离心率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/954795d1842974a705f9468f3b952ab1.png)
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