解题方法
1 . 已知焦点在
轴上,且
,
,则:
(1)求椭圆标准方程;
(2)求椭圆离心率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
(1)求椭圆标准方程;
(2)求椭圆离心率.
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2 . 已知曲线
.以下结论正确的个数是( )
①若
,则
是椭圆,其焦点在
轴上;②若
,则
是圆,其半径为
;③若
,则
是双曲线,其渐近线方程为
;④若
,则
是两条直线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff41b0435e120094baed2e8e37353ec.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66eba129d92ede31b728e2590c4db2a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ba433823cf6f0c5d158fa909f9f600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d249094ecb996458e35182d6b461299.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bdc69abbcdf98c42b649f8d8d4cd1ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9673011f3d3e5ed6ca7365e6b99afa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99cce0c3c400a31ea25294b5495f76be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.1 | B.2 | C.3 | D.4 |
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3 . 已知圆
的方程为
.
(1)求过点
,且与圆
相切的直线
的方程;
(2)
是圆
上一动点,点
的坐标为
.若点
为
的中点,求动点
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
(1)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22962a2ad892cb6b14ab039a06e8cdc6.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/bd3e1261ca4fd23dc71037396f6acfb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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2023-12-05更新
|
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2卷引用:新疆乌鲁木齐第六十一中学2023-2024学年高二上学期11月期中考试数学试题
解题方法
4 . 求满足下列条件的曲线方程:
(1)已知双曲线的焦点在
轴上,离心率为
,两顶点间的距离为6,求双曲线的标准方程;
(2)已知椭圆的长轴长是短轴长的3倍,且过点
,并且以坐标轴为对称轴,求椭圆的标准方程.
(1)已知双曲线的焦点在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caa585b9257ed0798213a9ae9b87d291.png)
(2)已知椭圆的长轴长是短轴长的3倍,且过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241ce9bd28046ce9b90f43b391132884.png)
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名校
解题方法
5 . 已知
,
是椭圆
的两个焦点,
,
为C上一点.
(1)求椭圆C的标准方程;
(2)若P为C上一点,且
,求
的面积.
![](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/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2644e9f73e5871db934fdafc431d675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4b5b3660e352c3fc3ede794022be9d.png)
(1)求椭圆C的标准方程;
(2)若P为C上一点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/210020e91dbd088c72734d3f2fe58c61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002ed1ebb2cb936e10ab478789f91c7c.png)
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2023-11-28更新
|
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7卷引用:新疆兵团地州学校2023-2024学年高二上学期期中联考数学试题
6 . 若方程
表示椭圆,则实数
的取值可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b194b8ca0efdbdfbf6c083e7eda9b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.3 | B.4 | C.5 | D.6 |
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2023-11-18更新
|
533次组卷
|
4卷引用:新疆伊犁州华·伊高中联盟2023-2024学年高二上学期期中数学试题
解题方法
7 . 经过椭圆
:
的左焦点
的直线交椭圆
于A,B两点,
是椭圆
的右焦点,则
的周长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f85bbabd6b846a04a74e8adf20feea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
A.20 | B.200 | C.40 | D.400 |
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名校
解题方法
8 . 求适合下列条件的椭圆的标准方程:
(1)经过
,
;
(2)长轴长是焦距的3倍,且经过点
.
(1)经过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4faef322ba29bd150d511ea71c8b12a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4b0ab6efd9b8c4e198a2621abf1b18.png)
(2)长轴长是焦距的3倍,且经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed18bd80c6c4142f68e89f4ad44570b5.png)
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2023-11-18更新
|
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3卷引用:新疆伊犁州华·伊高中联盟2023-2024学年高二上学期期中数学试题
9 . 椭圆
的短半轴长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eae69610cf3de1de0fd0cc40d5ecdf5.png)
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2023-11-18更新
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2卷引用:新疆伊犁州华·伊高中联盟2023-2024学年高二上学期期中数学试题
10 . 在平面直角坐标系中,已知点
,
,点
满足
.记
的轨迹为
.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb2e58d7f7f5736a2ca43175ac584dae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
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2023-11-09更新
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