1 . 已知双曲线C:
的左、右焦点分别为
,
,点P是C的右支上的一点,C在点P处的切线与C的渐近线交于M,N两点,O为坐标原点,给出下列四个结论:
①直线
的斜率的取值范围是
;
②点P到C的两条渐近线的距离之积为
;
③
;
④
.
其中所有正确结论的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28bf5b6dc0c77f6415940756380933f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
①直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da01a3abe1c9dc4e6283afa0dc1a0d39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b1af5d4b930f8989cf63d44768621e.png)
②点P到C的两条渐近线的距离之积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/841245ab5c8ffe0af2d54b7dfa23f46f.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b3384392c0eaabe04ae2aea7a3f2649.png)
其中所有正确结论的个数是( )
A.1 | B.2 | C.3 | D.4 |
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解题方法
2 . 直线
:
与
轴交于点
,与圆
:
交于
、
两点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b0073fed28fd0caeade3216a5a5b2a.png)
_________ ;若
,其中
为坐标原点,
为圆
的圆心,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a78e7cfb470e8b4adb10bac9b7fc147c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9df0d79e42d86b0def4caa10dffa75a.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/37b0073fed28fd0caeade3216a5a5b2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/398580aa27505c36e463f3e4f61611c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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3 . 已知椭圆
及直线
.
(1)若直线
与椭圆没有公共点,求实数
的取值范围;
(2)
为椭圆
上一动点,若点
到直线
距离的最大值为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219cf5ee39817cd25789e9a687212549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1237e78cbf73d72eef777d7d329b8dec.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec978eb43bc4f9e7df83b0d0195dcda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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|
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3卷引用:甘肃省靖远县第一中学2023-2024学年高二下学期6月期末考试数学试题
解题方法
4 . 已知直线
与椭圆
交于两点
,椭圆
的左、右顶点分别为
,直线
与直线
,
及
轴分别交于点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d068cb7425a11d89e367051106b30182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54bd29bb33574b3ba168663b37a0214c.png)
A.![]() ![]() |
B.直线![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() |
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5 . 已知直线
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99cfd33d04d38c380db0b3c1b01f40ad.png)
A.直线![]() ![]() |
B.当![]() ![]() ![]() ![]() |
C.直线![]() |
D.点![]() ![]() ![]() |
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6 . 圆
的圆心到直线
的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cadc2a6ae4ac51ad58567d0a352befd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e235d7dd12f948f5ffb2e5afddc95612.png)
A.1 | B.![]() | C.2 | D.![]() |
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7 . 把边长为
的正三角形
沿高线
折成
的二面角,这时顶点
到
的距离是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
A.a | B.![]() | C.![]() | D.![]() |
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解题方法
8 . 已知
为坐标原点,
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c12d079e3c6bcfe653c0e9ba66c2ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d9078e5a3c2ca24a0a6f0b67dd83560.png)
A.1 | B.![]() | C.![]() | D.2 |
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解题方法
9 . 已知双曲线E
的右焦点为F,以F为圆心,
为半径的圆与双曲线 E的一条渐近线交于A,B两点,若
,则双曲线 E的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbaf1f37bbe245f3618bef9fabb75ace.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41515fea3b3d3afa77c8f1ca1a3cb7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0224ca3e51c0da0960576918535981ab.png)
A.![]() | B.![]() | C.![]() | D.3 |
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2卷引用:河南省驻马店市2023-2024学年高二下学期7月期末质量监测数学试题
名校
解题方法
10 . 在平面直角坐标系
中,直线
上有且仅有一点
,使
,则直线
被圆
截得的弦长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7376e015d8782c7acad41d46b6773c7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5cb793cd3d086a324c197cf397f9399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ccb79eddac2ffba071f6e95f4b7be7c.png)
A.2 | B.![]() | C.4 | D.![]() |
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