解题方法
1 . 已知椭圆
的上顶点为
,圆
.对于圆
,给出两个性质:
①在圆
上存在点
,使得直线
与椭圆
相交于另一点
,满足
;
②对于圆
上任意点
,圆
在点
处的切线与椭圆
交于
,
两点,都有
.
(1)当
时,判断圆
是否满足性质①和性质②;(直接写出结论)
(2)已知当
时,圆
满足性质①,求点
和点
的坐标;
(3)是否存在
,使得圆
同时满足性质①和性质②,若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb5df95a756627611d0562f76e055d8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fed9d00388be6a5f77a0d992397509d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
①在圆
![](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/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f66560b7385c4a9d183ebe6b1b6112f.png)
②对于圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/5c0b06dc01c30d13f64be2ac6a1d811e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(2)已知当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e5b502a4ab157d36379c98ca8928ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b829d3ded5f93007d3ba22f2a862efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
解题方法
2 . 如图,在平面直角坐标系
中,已知双曲线
:
的右焦点为
,左、右顶点分别为
,
,过
且斜率不为0的直线
与
的左、右两支分别交于
、
两点,与
的两条渐近线分别交于
、
两点(从左到右依次为
、
、
、
),记以
为直径的圆为圆
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/14/07d8fe6f-6f3b-42b6-ae79-d601cc849399.png?resizew=149)
(1)当
与圆
相切时,求
;
(2)求证:直线
与直线
的交点
在圆
内.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/767187f446dedae821d58facd64aed6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db5660be1b6e0d3d1cab756d6f8f5855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473913c0887bb64d386f4c02f1853452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/14/07d8fe6f-6f3b-42b6-ae79-d601cc849399.png?resizew=149)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ca04f7af5df5606674310523b55f92.png)
(2)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e935bb9d7b7115429edbd1e7469af65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc48974114e23f5a801843710c7ae21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
您最近一年使用:0次
名校
3 . 已知
为坐标原点,圆
:
, 圆
:
.
分别为圆
和圆
上的动点,则
的最大值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a16236891226d9eda886887efeba5c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b5ebfc6a82f19cea0fd940017acf7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d30337ed2f68b73a050688566eac4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/550d183b05000722c74baf25eb4a6741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.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/b3df92f523d997e927407e020ad7161b.png)
您最近一年使用:0次
2019-03-11更新
|
1348次组卷
|
7卷引用:云南省昆明市第一中学2022-2023学年高二上学期期中考试数学试题
云南省昆明市第一中学2022-2023学年高二上学期期中考试数学试题云南省昆明市第一中学2023-2024学年高二上学期11月期中考试数学试题(已下线)期中真题必刷压轴60题(18个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)【市级联考】河北省唐山市2019届高三下学期第一次模拟考试数学(理)试题河北省石家庄市第二中学2019届高三下学期第二次模拟考试数学(理)试题.湖南省邵阳市2019-2020学年高三第一次联考数学(文)试题(已下线)2022年高考考前20天终极冲刺攻略(三)【理科数学】 (5月28日)
名校
4 . 在平面直角坐标系
中,椭圆
过点
,焦点
,圆
的直径为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/2805fa57-83cf-4509-a9ee-252a0472f7c5.jpg?resizew=184)
(1)求椭圆
及圆
的方程;
(2)设直线
与圆
相切于第一象限内的点
,直线
与椭圆
交于
两点.若
的面积为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e38398209c6e596145044d5afdea2e80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/871868260c78a20767eae39bcdb97476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643ef7d761de0e794fc39937dc72ac6a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/2805fa57-83cf-4509-a9ee-252a0472f7c5.jpg?resizew=184)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/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/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf116c552e0441e49c9845a63e26391c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2019-06-05更新
|
1563次组卷
|
3卷引用:广东省佛山市南海区南海中学2023-2024学年高二上学期第二次阶段考试数学试题
19-20高三上·上海浦东新·阶段练习
名校
5 . 已知椭圆
的方程为
,圆
与
轴相切于点
,与
轴正半轴相交于
、
两点,且
,如图1.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/9358ea55-8ed6-4ce7-85b7-9f62744eb625.png?resizew=438)
(1)求圆
的方程;
(2)如图1,过点
的直线
与椭圆
相交于
、
两点,求证:射线
平分
;
(3)如图2所示,点
、
是椭圆
的两个顶点,且第三象限的动点
在椭圆
上,若直线
与
轴交于点
,直线
与
轴交于点
,试问:四边形
的面积是否为定值?若是,请求出这个定值,若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c763113a1fc48e8acc83787b8cd24eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a63f7b42555f7f81bcb18b9247bf9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/368fc197b61e01fe6a4a168bb7b375cd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/9358ea55-8ed6-4ce7-85b7-9f62744eb625.png?resizew=438)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图1,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7023ec0f513c7d0ef86859a5ede54.png)
(3)如图2所示,点
![](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/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51e59d5ee66ef9fd625ffbdbbe6254a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2dce07491c3e53410375b50733fb7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7688363f5ffff23a6193c7a8eee501c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d6b1188b4520397649b0d3ccac7e248.png)
您最近一年使用:0次
2019-12-11更新
|
1386次组卷
|
4卷引用:安徽省六安市金安区第一中学2019-2020学年高二上学期期末数学(理)试题
安徽省六安市金安区第一中学2019-2020学年高二上学期期末数学(理)试题(已下线)上海市华东师范大学第二附属中学2019-2020学年高三上学期9月月考数学试题上海市大同中学2021届高三下学期3月月考数学试题(已下线)专题18 直线和圆的方程(讲义)-2
6 . 木工是家居装修中重要的角色,经过他们灵巧的双手,一件件堪称艺术品的木制家具被巧妙的制作出来,如图所示就是一种木工制图工具,
是直滑槽
的中点,短杆
可绕
转动,长杆
通过
处铰链与
连接,
上的栓子
可沿滑槽
滑动,且
,
.当栓子
在滑槽
内往复运动一次时,带动
绕
转动一周(
不动时
也不动),
处的笔尖画出的曲线记为
.
![](https://img.xkw.com/dksih/QBM/2021/7/20/2768334835032064/2792428161998848/STEM/ad47ec60-8cbe-4245-89cd-c9007ef9f75a.png?resizew=520)
(1)判断曲线
的形状,并说明理由;
(2)动点
在曲线
外,且点
到曲线
的两条切线相互垂直,求证:点
在定圆上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54298f581688081d0b0214334a0dedf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ef478c804c71ad3b374196a8ca9d74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/2021/7/20/2768334835032064/2792428161998848/STEM/ad47ec60-8cbe-4245-89cd-c9007ef9f75a.png?resizew=520)
(1)判断曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)动点
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2021-08-23更新
|
710次组卷
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2卷引用:2023版 北师大版(2019) 选修第一册 突围者 第二章 章末培优专练
名校
7 . 已知椭圆
:
的离心率为
,以原点为圆心,椭圆的短半轴长为半径的圆与直线
相切.
(1)求椭圆
的方程;
(2)设
,过点
作与
轴不重合的直线
交椭圆
于
,
两点,连接
,
分别交直线
于
,
两点,若直线
、
的斜率分别为
、
,试问:
是否为定值?若是,求出该定值,若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ec56b59d6f2654570c2b5c4fd13a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6cf8bcdb0a70eec31e80f0f1786f1f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424b20ba1d80badd5ced823b4484fca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47948b0c2daed4873697b2b1708ddbab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56cf3dde63baa5caf878c7ff8d31f648.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/a36d874d5d8db342ad523c33d13b15e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f179ccebf08df42f72bf004e0aca2ae.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)
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2016-12-04更新
|
2786次组卷
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13卷引用:广东省深圳市菁华学校2020-2021学年高二上学期12月月考数学试题
广东省深圳市菁华学校2020-2021学年高二上学期12月月考数学试题江苏省盐城市阜宁中学2021-2022学年高二上学期第一次阶段检测数学试题海南省文昌市文昌中学、华迈实验中学2023-2024学年高二上学期期中段考数学试题2016届重庆市巴蜀中学高三上学期第三次月考理科数学试卷2016届安徽省六安一中高三下学期综合训练一理科数学试卷2016届黑龙江哈尔滨六中高三下四模考试文科数学试卷2019年四川省仁寿一中等西南四省八校高三9月份联考数学(文)试题四川省仁寿一中等西南四省八校2020届高三9月份联考数学(理)试题重庆市江津中学、实验中学等七校2020届高三下学期6月联考(三诊)数学(文)试题湖北省武汉襄阳荆门宜昌四地六校考试联盟2020-2021学年高三上学期起点联考数学试题湖北省华中师大一附中等六校2020-2021学年高三上学期联考数学试题(已下线)第64讲 章末检测九(已下线)专题32 一类与斜率和、差、商、积问题的探究-2
8 . 在平面直角坐标系
中,设点
是椭圆
上一点,以M为圆心的一个半径
的圆,过原点作此圆的两条切线分别与椭圆C交于点P、Q.
(1)若直线
的斜率都存在,且分别记为
.求证:
为定值;
(2)探究
是否为定值,若是,则求出
的最大值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22962a2ad892cb6b14ab039a06e8cdc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8e643123a5f7a219e2a3f4270fe1dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8176754726d2194c890e80df1a1f1c3a.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/139c0ae68e597571ba72ef727fa9222c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4757181824e15e0f21e5bdd55448783.png)
(2)探究
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f6c5fd93aed88bec58002a20ea2e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bab77b1212086d7b16e288f73a09560.png)
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9 . 若等差数列
满足
则
的最大值为_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddd97dae9e9c0ea21db5646ef88999f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/364f2e680e15ca52f466c10dc90287c4.png)
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2020-05-06更新
|
792次组卷
|
4卷引用:江苏省苏州中学2023-2024学年高二上学期期中数学试题
名校
10 . 规定:在桌面上,用母球击打目标球,使目标球运动,球的位置是指球心的位置,我们说球 A 是指该球的球心点 A.两球碰撞后,目标球在两球的球心所确定的直线上运动,目标球的运动方向是指目标球被母球击打时,母球球心所指向目标球球心的方向.所有的球都简化为平面上半径为 1 的圆,且母球与目标球有公共点时,目标球就开始运动,在桌面上建立平面直角坐标系,解决下列问题:
(1) 如图,设母球 A 的位置为 (0, 0),目标球 B 的位置为 (4, 0),要使目标球 B 向 C(8, -4) 处运动,求母球 A 球心运动的直线方程;
(2)如图,若母球 A 的位置为 (0, -2),目标球 B 的位置为 (4, 0),能否让母球 A 击打目标 B 球后,使目标 B 球向 (8,-4) 处运动?
(3)若 A 的位置为 (0,a) 时,使得母球 A 击打目标球 B 时,目标球 B(4
, 0) 运动方向可以碰到目标球 C(7
,-5
),求 a 的最小值(只需要写出结果即可)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/f823eea5-7d03-46be-a391-88b852687a4f.png?resizew=422)
(1) 如图,设母球 A 的位置为 (0, 0),目标球 B 的位置为 (4, 0),要使目标球 B 向 C(8, -4) 处运动,求母球 A 球心运动的直线方程;
(2)如图,若母球 A 的位置为 (0, -2),目标球 B 的位置为 (4, 0),能否让母球 A 击打目标 B 球后,使目标 B 球向 (8,-4) 处运动?
(3)若 A 的位置为 (0,a) 时,使得母球 A 击打目标球 B 时,目标球 B(4
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
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2018-11-29更新
|
1484次组卷
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6卷引用:广东省佛山市第一中学2019-2020学年高二上学期期中数学试题
广东省佛山市第一中学2019-2020学年高二上学期期中数学试题人教A版(2019) 选择性必修第一册 过关斩将 第二章 直线和圆的方程 2.1-2.5 综合拔高练(已下线)2.3 圆与圆的位置关系(课堂培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)2023版 湘教版(2019) 选修第一册 过关斩将 第2章 综合拔高练江苏省无锡市第一中学2023-2024学年高二上学期阶段性质量检测数学试题【市级联考】江苏省连云港市2019届高三上学期期中考试数学试题