名校
解题方法
1 . 已知椭圆
两焦点
,并经过点
.
(1)求椭圆
的标准方程;
(2)设
为椭圆
上关于
轴对称的不同两点,
为
轴上两点,且
,证明:直线
的交点
仍在椭圆
上;
(3)你能否将(2)推广到一般椭圆中?写出你的结论即可.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f49644cd9fa4688cc3a74a234952530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc8ae763010ec2babfa828d264ace7fc.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0200bb2c3cc080a5d1ecf36f80aea0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b46051fea24610b42da314ec58bbb80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/142eefc20e0a5ab44d56d38ca442ae16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(3)你能否将(2)推广到一般椭圆中?写出你的结论即可.
您最近一年使用:0次
2 . 已知双曲线
的两焦点为
,
为动点,若
.
(1)求动点
的轨迹
方程;
(2)若
,设直线
过点
,且与轨迹
交于
两点,直线
与
交于
点.试问:当直线
在变化时,点
是否恒在一条定直线上?若是,请写出这条定直线方程,并证明你的结论;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea74737939c0f94c91229a7098f36ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f595683f69d5d6b5ca76408b0ff6ff17.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b5dbfa1543e19099e728ca895a3146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49f31a1284206d3a2fdea63f2a6983b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c45a57242b7e27503239c428b773f6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec18c028746b73be7503ff6ff458a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
3 . 已知直线与抛物线交于两点.
(1)求证:若直线
过抛物线的焦点,则
;
(2)写出(1)的逆命题,判断真假,并证明你的判断.
(1)求证:若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/749b17e02ac5325dcfcac745a51b5170.png)
(2)写出(1)的逆命题,判断真假,并证明你的判断.
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4 . 已知
,设
,当
为何值时:
(1)在复平面上
对应的点在第二象限?
(2)在复平面上
对应的点在直线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dcaaf1119323f08e173d178d5b6266c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)在复平面上
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
(2)在复平面上
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512f4c29ff276b7f35052ad4cc255ab5.png)
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2020-02-29更新
|
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3卷引用:上海市七宝中学2019-2020学年高二上学期期末数学试题
上海市七宝中学2019-2020学年高二上学期期末数学试题(已下线)专题5.3 期末考前必做30题(解答题基础版)-2020-2021学年高二数学下学期期末专项复习(沪教版)陕西省渭南市韩城市西庄中学2020-2021学年高二下学期期中理科数学试题
5 . (1)若圆
的方程是
,求证:过圆
上一点
的切线方程为
.
(2)若圆
的方程是
,则过圆
上一点
的切线方程为_______ ,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3503d330608e7138d1b529aba4512fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3511cdc6a9b56bc1d9415d3d94ef0f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d340bd3f078b9261238d4fe59f1473c1.png)
(2)若圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e885d3743ae3d9f0fbd740b75f900083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3511cdc6a9b56bc1d9415d3d94ef0f67.png)
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2020-02-29更新
|
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2卷引用:上海市七宝中学2019-2020学年高二上学期期末数学试题
名校
解题方法
6 . 椭圆
与直线
的交点情况是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ddaa027ce520c1c035399c3674bf39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/757fa0873963b77266c7aeab8117bfeb.png)
A.没有交点 | B.有一个交点 | C.有两个交点 | D.由![]() |
您最近一年使用:0次
7 . 当实数
变化时,两直线
与
都通过一个定点,则点
所在曲线的方程为_________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3727679930143c5c7d5188efcd876820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c150333f0d8ca8bc9590cbbe6938e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64d924836b4292239d9726c6473d7f5.png)
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上海市七宝中学2019-2020学年高二上学期期末数学试题(已下线)2020年秋季高二数学开学摸底考试卷(新教材人教A版)05江苏省南京市田家炳高级中学2020-2021学年高二上学期10月检测数学试题(已下线)专题5.5 期末考前必做30题(填空题提升版)-2020-2021学年高二数学下学期期末专项复习(沪教版)
8 . 动点
到点
的距离比到它到
轴的距离大
,动点
的轨迹方程是_________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e1a85a657231ef717809d5a839ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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9 . 直线
与曲线
的公共点的个数为_________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c9879bc8dc35900af686306952f51b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca15284e01f8ea51e6112538603af91e.png)
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名校
解题方法
10 . 椭圆
的一个焦点是
,动点
是椭圆上的点,以线段
为直径的圆始终与一定圆相切,则定圆的方程是_________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.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/4fb26d84907c923278ac4626a9d58947.png)
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