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1 . 某游乐园中有一座摩天轮.如图所示,摩天轮所在的平面与地面垂直,摩天轮为东西走向.地面上有一条北偏东为
的笔直公路,其中
.摩天轮近似为一个圆,其半径为
,圆心
到地面的距离为
,其最高点为
点正下方的地面
点与公路的距离为
.甲在摩天轮上,乙在公路上.(为了计算方便,甲乙两人的身高、摩天轮的座舱高度和公路宽度忽略不计)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/18/c50080be-44e3-4828-9bf3-8f8e58a640df.png?resizew=218)
(1)如图所示,甲位于摩天轮的
点处时,从甲看乙的最大俯角的正切值等于多少?
(2)当甲随着摩天轮转动时,从乙看甲的最大仰角的正切值等于多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbbbc31960240afea742753b6a8dad6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4053cc2a31e9703bf80b62b5ea18c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c758c27bec97c234d1d818c40f3d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1d5a8cd34aff27b8ed21c977c3946f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d112c9693aa126c92bf1402a1f66bcb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/18/c50080be-44e3-4828-9bf3-8f8e58a640df.png?resizew=218)
(1)如图所示,甲位于摩天轮的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)当甲随着摩天轮转动时,从乙看甲的最大仰角的正切值等于多少?
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2024-02-27更新
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3卷引用:重庆市乌江新高考协作体2023-2024学年高二下学期开学学业质量联合调研抽测数学试题
2 . 已知椭圆C:
的长轴长为4,离心率为
,A,F分别为椭圆C的左顶点、右焦点.P,Q为椭圆C上异于A的两个动点,直线AP,AQ与直线l:
分别交于M,N两个不同的点.
(1)求椭圆C的方程:
(2)设直线l与x轴交于R,若P,F,Q三点共线,求证:
与
相似.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
(1)求椭圆C的方程:
(2)设直线l与x轴交于R,若P,F,Q三点共线,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1511281590030d7c754c0c6a6bb77f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260b6bc61da3f8bf314a388f558cde7c.png)
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解题方法
3 . 公元前3世纪,古希腊数学家阿波罗尼斯在《平面轨迹》一书中,曾研究了众多的平面轨迹问题,其中有如下结果:平面内到两定点距离之比等于已知数的动点轨迹为直线或圆,后世把这种圆称之为阿波罗尼斯圆.已知平面直角坐标系中
且
.
(1)求点P的轨迹方程;
(2)若点P在(1)的轨迹上运动,点M为AP的中点,求点M的轨迹方程;
(3)若点
在(1)的轨迹上运动,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385ce2f6229db26c11d793c7e68d1c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab34ce6cee0673ab0d37b660d57bc07.png)
(1)求点P的轨迹方程;
(2)若点P在(1)的轨迹上运动,点M为AP的中点,求点M的轨迹方程;
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c331f6014406bc2930ddf72e6ea546e3.png)
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2022-11-05更新
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5卷引用:重庆市铁路中学校2022-2023学年高二上学期期中数学试题
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解题方法
4 . 已知点
为圆
上一点,
轴于点
,
轴于点
,点
满足
(
为坐标原点),点
的轨迹为曲线
.
(Ⅰ)求
的方程;
(Ⅱ)斜率为
的直线
交曲线
于不同的两点
、
,是否存在定点
,使得直线
、
的斜率之和恒为0.若存在,则求出点
的坐标;若不存在,则请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54aa84d529d5dae2904a1be24edbe3dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d21f72aca4a8a9a188aec99dd631d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd99a5ee13673e613bb4f20f3c05ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(Ⅱ)斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a354c472e3de0d03a4d288bb7b62a22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77ce31833750a319b3c2db7837a110d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
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5 . 已知抛物线
上一点
,过
作倾斜角互补的两条直线
,
分别交抛物线于不同的两点
,
,已知直线
的斜率为-2,则点
的横坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f4123c19136d3a4dc040dce8e34e14.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.2 | B.![]() | C.1 | D.![]() |
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6 . 已知
分别为椭圆
:
的左、右顶点,
为椭圆
上异于
两点的任意一点,直线
的斜率分别记为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/10/85595577-2991-4631-bb6f-2dd7efdd6a73.png?resizew=199)
(1)求
;
(2)过坐标原点
作与直线
平行的两条射线分别交椭圆
于点
,问:
的面积是否为定值?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80b861ba40387cb2bcd04945f5a371a.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/10/85595577-2991-4631-bb6f-2dd7efdd6a73.png?resizew=199)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49d1ebc3ba66fdefde643d492fd6d02.png)
(2)过坐标原点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f02028a3847c4807c2d3cf0ea7efb8.png)
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2017-04-15更新
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4卷引用:2017届重庆市高三4月调研测试(二诊)数学理试卷