名校
解题方法
1 . 已知圆
,点
,点
是圆
上的一个动点,点
、
分别在线段
、
上,且满足
,
.
(1)求点
的轨迹方程;
(2)过点
作斜率为
的直线
与点
的轨迹相交于
两点,在
轴上是否存在点
,使得以
为邻边的平行四边形是菱形?如果存在,求出
的取值范围;如果不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89ff31057ecaa627f515ba1695a3a220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b47e7bf02b3ca16f7d96b9369e51a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6da2235c42867f9a79007c3fc83fec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3bd41676f6b69acac00a292fe134cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a9a1da53d6bd97771e38a4304d359f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1457edb97a806d4dc98072be1ec8aae.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b47e7bf02b3ca16f7d96b9369e51a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d903b1ff09e933b73ef0f75fc861dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec8858389f4c3156a946ba8bf0d8a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-06-11更新
|
785次组卷
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2卷引用:四川省攀枝花市第十五中学2019-2020学年高二上学期第二次月考数学(文科)试卷
名校
解题方法
2 . 已知
、
、
分别是
的三边
、
、
上的点,且满足
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41f92e211b954149aa8754b2d7f7f56d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f29c54468c6c27f35feefea1a38aecb.png)
,则
( )
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96823767c88cade4b290d2837e497c5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fe329020273bf1ca39885b6536fad1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d44b89d48fa2b50826a528fa736ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41f92e211b954149aa8754b2d7f7f56d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f29c54468c6c27f35feefea1a38aecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba37cce704ab8896f7be80446c61f1b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda1e14c748d2037845271d2cfa40766.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-05-03更新
|
2906次组卷
|
6卷引用:湖南省长沙市南雅中学2019-2020学年高一下学期第一次月考数学试题
湖南省长沙市南雅中学2019-2020学年高一下学期第一次月考数学试题宁夏吴忠市青铜峡第一中学2020-2021年高二下学期第二次月考数学(理)试题江西省景德镇一中2020-2021学年高一(1班)上学期期末考试数学试题四川省达州市大竹县大竹中学2020-2021学年高一下学期5月月考数学试题辽宁省大连市大连育明高级中学2022-2023学年高一下学期期中数学试题(已下线)第9章 平面向量 单元综合检测(难点)-《重难点题型·高分突破》(苏教版2019必修第二册)
名校
解题方法
3 . 已知椭圆
的左、右焦点分别为
,
,
是椭圆上任意一点,直线
垂直于
且交线段
于点
,若
,则该椭圆的离心率的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1eb15d354e4ef64e6f4297edc8acd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da01a3abe1c9dc4e6283afa0dc1a0d39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0507fce016da64d37cc81f4119deab32.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/f30aee69-dd48-4c01-b406-d3457e1bab41.png?resizew=152)
您最近一年使用:0次
2020-04-10更新
|
3559次组卷
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10卷引用:河南省许昌高级中学2020-2021学年第一学期第二次调研考试高二数学文科试题
河南省许昌高级中学2020-2021学年第一学期第二次调研考试高二数学文科试题2019届浙江省绍兴市柯桥区高三上学期期末数学试题浙江省宁波市北仑中学2021-2022学年高二上学期期中数学试题江苏省盐城市伍佑中学2021-2022学年高二上学期期中数学试题(已下线)3.1 椭圆吉林省长春市第二实验中学2022-2023学年高二上学期第一次月考数学试题吉林省长春市实验中学2022-2023学年高二上学期期中数学试题(已下线)专题9-3 求椭圆双曲线离心率题型归类-3(已下线)专题22 圆锥曲线的离心率问题-3(已下线)专题7-3圆锥曲线离心率归类-2
4 . 已知非零向量
,
,
满足:
,且不等式
恒成立,则实数
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c308ea87b699ee1dcb879a568899de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41f48b124d567bd97b70a3e5f7a1ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac52df4643a727b8da4c3a398c072118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2019-07-11更新
|
2109次组卷
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4卷引用:浙江省慈溪市2018-2019学年高二第二学期期末数学试题
浙江省慈溪市2018-2019学年高二第二学期期末数学试题浙江省慈溪市2018-2019学年高二下学期期末数学试题(已下线)07练-冲刺2020年高考数学小题狂刷卷(浙江专用)浙江省温州市乐清市知临中学2021-2022学年高二下学期期中数学试题