1 . 设
,
是双曲线
-
= 1
的左、右两个焦点,
为左准线,离心率
,
是左支上一点,P到
的距离为
,且
,| PF
|,| PF
|成等差数列,求此双曲线方程.
![](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/7355be4fcbc3130a5951364a3be76d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5268413295580cfda0755ab458b36b64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d26d3f9d8344e1c727fbbed5421daaa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d5d2b95ceced05d7bfab425ca3a2bc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2484ed697198409a3c2bf52e68fbd255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edec6b3a624042e4295d9e709401b0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d68c9c1649a2fedf11b5b6358a898e6.png)
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解题方法
2 . 古希腊数学家欧几里得在《几何原本》中描述了圆锥曲线的共性,并给出了圆锥曲线的统一定义,只可惜对这一定义欧几里得没有给出证明.经过了500年,到了3世纪,希腊数学家帕普斯在他的著作《数学汇篇》中,完善了欧几里得关于圆锥曲线的统一定义,并对这一定义进行了证明,他指出,到定点的距离与到定直线的距离的比是常数e的点的轨迹叫做圆锥曲线:当
时,轨迹为椭圆;当
时,轨迹为抛物线;当
时,轨迹为双曲线.现有方程
表示的曲线是双曲线,则m的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42b7ac29311c13aa538f3f48cb513b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09dbcaa127022fbd6b6f13345196408a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58c44592477e5cab15cd165ff9b3d78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bfd1c4144ba1ea89a63f8801335ca1d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 过椭圆的左焦点F作直线交椭圆于
两点,若
,且直线倾斜角为
,则椭圆的离心率____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932b57b8ae3290f142fda2790318dfd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
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2022-02-24更新
|
653次组卷
|
2卷引用:黑龙江省实验中学2021-2022学年高三上学期第六次月考数学(理)试题
4 . 若椭圆的焦点为
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c20fca284394bf5d5b9e5f6d952e8.png)
,长轴长为2a,则椭圆上的点(x,y)满足( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5076829e649b3f3866d4a7e07a5713e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c20fca284394bf5d5b9e5f6d952e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8407a79a35b42bd01409c85d2ccf2bc7.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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5 . 点
与定点
的距离和它到定直线
的距离之比是常数
,则
的轨迹方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db3b46f0bf8897318fb3d0114e56e55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ed30d19e5bd7e7e86a9405726f2b947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2022高三·全国·专题练习
6 . 已知动点
满足
,则点
的轨迹是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3aea26b268344d0b34f9e931cc5876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.圆 | B.椭圆 | C.双曲线 | D.抛物线 |
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解题方法
7 . 过椭圆的左焦点F作直线交椭圆于
两点,若
,且直线与长轴的夹角为
,则椭圆的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932b57b8ae3290f142fda2790318dfd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022高三·北京石景山·专题练习
名校
解题方法
8 . 已知椭圆
上有
个不同的点
,
,
,
,
.设椭圆的右焦点为
,数列
是公差大于
的等差数列,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.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/797e67927616b141ed7c6b83f8b6f4fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07096af3b99fd1cb11c31f19a2c6408e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1657c65ebac1de662a9dd519106cd035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90b560e7bd20817cfe01201e768b8140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.2007 | B.2006 | C.1004 | D.1003 |
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2021-09-29更新
|
723次组卷
|
4卷引用:专题7.18 数列与解析几何的综合-2022届高三数学一轮复习精讲精练
(已下线)专题7.18 数列与解析几何的综合-2022届高三数学一轮复习精讲精练新疆喀什第二中学2021-2022学年高二11月月考数学试题北京市2022届高三普通高等学校招生全国统一考试数学模拟试题(已下线)专题3 解析几何与数列
2022高三·北京石景山·专题练习
解题方法
9 . 椭圆
上有
个不同的点
,
,
,
,椭圆的右焦点为
,数列
是公差大于
的等差数列,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.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/07096af3b99fd1cb11c31f19a2c6408e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1657c65ebac1de662a9dd519106cd035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38c5688914317f4a6eef630cba36d08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.2000 | B.2001 | C.2003 | D.2005 |
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2022高三·北京石景山·专题练习
解题方法
10 . 已知双曲线
的左、右焦点分别为
,
为左支上一点,
到左准线的距离为
,若
、
、
成等比数列,则其离心率的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/528a243eb93f63c1e126409be1fb3fb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643ef7d761de0e794fc39937dc72ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e99c00835ffc1896285fd94f1f78ae2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de0159daeb62cb68801c7a6e971f39a.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
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