名校
1 . 已知两定点
,
,点
是曲线
上任意一点,且满足条件
.
(1)求曲线
的轨迹方程;
(2)若直线
与曲线
交于
,
两点,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/486279e7ff9f2b76c2ce712f5dedcb9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385afe18c3fad66fdeadf74be824283c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f5c479a6198a23455b4c773cf20294.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231896d2386c924306fce5ccf9f9e8a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2020-10-07更新
|
968次组卷
|
2卷引用:黑龙江省大庆市铁人中学2020-2021学年高二上学期第一次月考数学试题
名校
2 . 设直线l:y=2x﹣1与双曲线
(
,
)相交于A、B两个不
同的点,且
(O为原点).
(1)判断
是否为定值,并说明理由;
(2)当双曲线离心率
时,求双曲线实轴长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
同的点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19468abe1aa4e99874d13b8359ec7332.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80235d30a95d6cf370a71589ba2101d8.png)
(2)当双曲线离心率
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a00b3defcaf2eaa9ce826f1ed55bef89.png)
您最近一年使用:0次
2018-11-23更新
|
623次组卷
|
3卷引用:黑龙江省哈尔滨市宾县一中2019-2020学年高二上学期第二次月考数学(文)试卷