解题方法
1 . 已知椭圆
的右焦点为F,A为椭圆上一点,
为坐标原点,直线
与椭圆交于另一点
,直线
与椭圆交于另一点
(点B、D不重合).
(1)设直线
,
的斜率分别为
,
,证明:
;
(2)点
为直线
上一点,记
的斜率分别为
,若
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)设直线
![](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/88920aab87278ca982c235e13f847c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a3124397a6320395c8ada2b4fb0d01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cddd7153c6b4c5f6f6e84880198e2ea5.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a3316e7f3ec806e89513a0b329246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca1726d463bd741c904abd9b6589056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5e70851ed812c307e1e614ac56884b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2024-03-09更新
|
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|
2卷引用:河北省百师联盟2024届高三下学期开学摸底联考数学试题
名校
解题方法
2 . 已知椭圆
的右焦点为
,且椭圆
经过点
.过右焦点
作直线
交椭圆于
,
两点,
是直线
上任意一点.
(1)求
的方程;
(2)设直线
,
,
的斜率分别为
,
,
,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b3560b239bca664c50848502cc878b.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5147cea4c9ce855074864fe54506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf434334b09cc0fdd4e86e84e6ceb00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9f2787131057460eae4a5d98b02b699.png)
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名校
3 . 若曲线
与曲线
有6个公共点,则
的值可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81aca08ef1cb8be596963195e4171ae1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a13bb55a8c03cc34b9279b1ef50448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-04更新
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2卷引用:河北省保定市定州市第二中学2023-2024学年高二下学期开学考试数学试题
4 . 已知圆
与圆
交点的轨迹为
,过平面内的点
作轨迹
的两条互相垂直的切线,则点
的轨迹方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8467d1b554d65fd23c2379c31b10c397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18685baf0ec429bb1b17fad3f93c4970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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|
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9卷引用:河北省保定市部分高中2023-2024学年高三下学期开学检测考试数学试题
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