名校
解题方法
1 . 在平面直角坐标系
中,对于直线
和点
、
,记
,若
,则称点
、
被直线
分隔,若曲线
与直线
没有公共点,且曲线
上存在点
、
被直线
分隔,则称直线
为曲线
的一条分隔线.
(1)判断点
是否被直线
分隔并证明;
(2)若直线
是曲线
的分隔线,求实数
的取值范围;
(3)动点
到点
的距离与到
轴的距离之积为
,设点
的轨迹为曲线
,求证:通过原点的直线中,有且仅有一条直线是
的分隔线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29fa0e0526598c4140789f6328daac9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653fe002a6d9968d6b1d2e7ec36d178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4869bf9983f59598ca7954fd7e89b66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b3d5b330a1e9746267f1a80482e435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a93e8201cd8010f841a105bc9afd99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)判断点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a76e726cd6ff947e0ae20c07ebfa8bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0985b973395bcd371cd1e26d3fcd1c36.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348aca26e61218d251581e21c1129a8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b378e03d75c73c8ca71f991a8c07729a.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
您最近一年使用:0次
解题方法
2 . 已知双曲线
:
的离心率为
,左、右顶点分别为
点
满足
.
(1)求双曲线
的方程;
(2)过点
的直线
与双曲线
交于
两点,直线
(
为坐标原点)与直线
交于点
.设直线
的斜率分别为
,
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/238c07b3ab3b4c419b20812b8b145d78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a436db19eb954d31075d5398f1b92ecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf9cf4e2503018ca54fc9b75c928cbe.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a1beaba1a66642282cbb840964d63dd.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/b4757181824e15e0f21e5bdd55448783.png)
您最近一年使用:0次
名校
解题方法
3 . 已知双曲线
经过点(
,1)
(1)求双曲线C的离心率;
(2)若直线
与双曲线C相交于A,B两点(A,B均异于左、右顶点),且以AB为直径的圆过双曲线C的左顶点D,求证:直线l过定点,并求出该定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7d3146ac2ee0fe3dad72f9d94c3f89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e4b5a2ccac15d3015249bd19a1876f1.png)
(1)求双曲线C的离心率;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc42211598a3c7bd950637fd583c562.png)
您最近一年使用:0次
2022-10-19更新
|
929次组卷
|
4卷引用:河南省驻马店市新蔡县第一高级中学2022-2023学年高二上学期10月月考数学理科试题
河南省驻马店市新蔡县第一高级中学2022-2023学年高二上学期10月月考数学理科试题江苏省盐城市滨海县2022-2023学年高二上学期期中数学试题(已下线)专题10 圆锥曲线综合大题10种题型归类-【寒假分层作业】2024年高二数学寒假培优练(人教A版2019选择性必修第一册)(已下线)专题7-4圆锥曲线五个方程型大题归类-1
4 . 在平面直角坐标系xOy中,已知双曲线
.
(1)设F是C的左焦点,M是C右支上一点,若
,求点M的坐标;
(2)设斜率为
的直线l交C于P、Q两点,若l与圆
相切,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d11a263b2cb524d5dd680129f5a152.png)
(1)设F是C的左焦点,M是C右支上一点,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f37b89144f3dba06dbecdf0fe1b278a5.png)
(2)设斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d72b1c0eb408d76dcdb2e291af38554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7df99fe6438442a9453fc0c57fb703.png)
您最近一年使用:0次
2022-09-07更新
|
421次组卷
|
2卷引用:沪教版(2020) 选修第一册 同步跟踪练习 第2章 测试卷
解题方法
5 . 过双曲线
的左焦点
,作倾斜角为
的直线
.
(1)求证:
与双曲线有两个不同的交点
;
(2)求线段
的中点
的坐标和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c477e5ade921ffa8377c4719319380ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
6 . 已知双曲线的左,右焦点分别为
,
,离心率
,且过点
.
(1)求双曲线的标准方程;
(2)直线
与双曲线交于M,N两点,求证:
.
![](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/5641df2cf6ae774d06733a2f73172a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2776e22e73b1bf3914056e1fa2aa3a.png)
(1)求双曲线的标准方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36aa6059d86873be18cb1e50bcb3465a.png)
您最近一年使用:0次
2021-01-17更新
|
203次组卷
|
2卷引用:甘肃省白银市会宁县2020-2021学年高二上学期期末考试数学(文)试题