名校
解题方法
1 . 已知圆
,圆
,动圆
与圆
外切于点
,与圆
内切于点
,圆心
的轨迹记为曲线
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f09301f91879129399c1ba45635f89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3e7ea39906456429384362b6d037ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() | D.曲线![]() ![]() ![]() |
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名校
解题方法
2 . 设椭圆C:
的上顶点为A,左、右焦点分别为
,连接
并延长交椭圆C于点P,若
,则该椭圆的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f98254a6193566587a70c7d95fdabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b35d50730c973286dc99ed9405f6d4.png)
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3 . 已知点
是圆
上一动点,点
,线段
的垂直平分线交线段
于点
.当点
运动时,设点
的轨迹为E.
(1)求点
的轨迹方程;
(2)已知过点
的直线
分别交E于
和
,且两直线的斜率之积为1,设
的中点分别为
,探究
轴上是否存在定点
,使得
,若存在,求出定点;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f9dc1bbc5193d7c1e6a2bc1f459990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996dadd8544543637bd2d32a1f79579e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)已知过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0235e0e72a28b90c4abe7b84f3dfa9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c4cd264c97c1f261229925cc5a6761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c4cd264c97c1f261229925cc5a6761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b1a8ebfbce5db9fe9d0e2c8b9598c7.png)
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4 . 设椭圆
的焦点分别为
与
.若此椭圆上存在点
使得
为正三角形,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3997e2e743835239010fa32ee3e001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c08475517a5a699eaf43e975a49855b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f00babe10971b71caf8cffb72412950d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74d48413457e48bfc45ee289139fd706.png)
A.![]() | B.![]() | C.28 | D.36 |
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5 . 已知圆
,圆
.若动圆
与圆
外切,且与圆
内切.
(1)求圆
和圆
的圆心和半径
(2)求动圆的圆心
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f09301f91879129399c1ba45635f89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3e7ea39906456429384362b6d037ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
(2)求动圆的圆心
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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解题方法
6 . 有以下三条轨迹:
①已知圆
,圆
,动圆P与圆A内切,与圆B外切,动圆圆心P的运动轨迹记为
;
②已知点A,B分别是x,y轴上的动点,O是坐标原点,满足
,AB,AO的中点分别为M,N,MN的中点为P,点P的运动轨迹记为
;
③已知
,直线
:
,点P满足到点A的距离与到直线
的距离之比为
,点P的运动轨迹记为
.设曲线
的离心率分别是
,则( )
①已知圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4af322ade58a465ffb4deecd0ee8b70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da3a2b5033a60426bebc34dfd3d631f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
②已知点A,B分别是x,y轴上的动点,O是坐标原点,满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179d7920ec6cd22f3a0cfa6738260153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
③已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a98eaaab44a91d0bad21dbd260be770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c778e409fe63e187a09444bc888e8f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a809ca7fdd64561639655b464bdbc1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5916c998f2252c850c78851abc0e29dc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
7 . 已知实数
,
满足
,则代数式
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c9fbdbc58b8268344cab615b33986c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/285bb8dac8bdbbda922db848827578bf.png)
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2023-12-02更新
|
503次组卷
|
2卷引用:广东省东莞市七校2023-2024学年高二上学期期中联考数学试题
名校
解题方法
8 . 平面直角坐标系中,圆M的方程为
,圆N的方程为
,动圆P与圆N内切,与圆M外切.
(1)求动圆P的圆心的轨迹方程;
(2)当
时,求
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9df0d79e42d86b0def4caa10dffa75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/043fa6a28e692cd7c73c0362e8bcb580.png)
(1)求动圆P的圆心的轨迹方程;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a08e152a1d0b0912d73d25f02c6bad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45a8a837c11c07073da3ff751d70278.png)
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9 . 一动圆
与圆
外切,同时与圆
内切,则动圆
圆心的轨迹方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735524a67b7494ecb8900668ba60addd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0dacb02e2bccdb90876848bfe6d345.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2023-11-29更新
|
1080次组卷
|
4卷引用:山东省青岛市青岛第二中学2023-2024学年高二上学期期中数学试题
山东省青岛市青岛第二中学2023-2024学年高二上学期期中数学试题山东省滕州市第一中学2023-2024学年高二上学期12月阶段性检测数学试题(已下线)模块五 专题4 期末全真模拟(能力卷2)期末终极研习室(高二人教A版)(已下线)第三章:圆锥曲线的方程章末重点题型复习-【题型分类归纳】2023-2024学年高二数学同步讲与练(人教A版2019选择性必修第一册)
名校
解题方法
10 . 椭圆的两个焦点是
和
,椭圆上的点M到两个焦点的距离之和等于10,则椭圆的标准方程是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd0825e68122a65426840fbf07cf296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ed24bfcc37b79fe9ca61ed8fdf26ea.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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