1 . 已知双曲线
.
(1)求上焦点
的坐标;
(2)若动点
在双曲线的上支上运动,求点
到
的距离的最小值,并求此时
的坐标;
(3)若
为双曲线的上顶点,直线
与双曲线交于C、D两点(异于点
),
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ddacb9233c23d3c83c8d9cff313d669.png)
(1)求上焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
(2)若动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3325d357e4e3a160e6cc357cac2c1543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4147f37263dc5cdebcf9d53b758977dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf6e750ebbb7b47b17d1c4f21be76d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2024-01-20更新
|
248次组卷
|
2卷引用:上海市莘庄中学2023-2024学年高二上学期期末数学试题
名校
解题方法
2 . 已知
,
(
)是双曲线
上位于第一象限的任意两点,且
,则函数
的值域为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b225d772013d021cf1bfe7b9421fa5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b7e35faab6d74fa0c36599c39d1698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1fa37c4c826b5dcfebe86ab6177906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f9d6bd79d59276c857eb0e531f1a40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd1f9ae0ee7f37a1ee021b967db1bfc.png)
您最近一年使用:0次
解题方法
3 . 某苗圃有两个入口A、B,
,欲在苗圃内开辟一块区域种植观赏植物,现有150株树苗放在P处,已知
,
,以AB所在直线为x轴,AB中点为原点建立直角坐标系.计划将树苗种在以
,
,
,
为顶点的矩形内呈15列10行等距排列.
(1)种在点
处的树苗应通过哪个入口运输路程较短?
(2)能否在苗圃内确定一条界线,使位于界线一侧的树苗沿PA运输较近,而另一侧的树苗沿PB运输较近?若能,求出这条界线;若不能,说明理由.
(3)有多少株树苗沿PB运输较近?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86eaac8863f15168b2d416a8b105bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f84bb093acbca9daf14d5146743d44e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de949749cd49269278987a3c62594215.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/333019fd1f1336dd02c0579ecc114d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae0935c251f0a684e498c286f6138b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d6b740cd2e0904994fd655983348f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ea9c86a4cc05d5c95c134edb874e7e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/18/83d6de7f-78a1-4bf3-a052-cf1a82f19600.png?resizew=176)
(1)种在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c293fdb849822d49c621971e47f6627f.png)
(2)能否在苗圃内确定一条界线,使位于界线一侧的树苗沿PA运输较近,而另一侧的树苗沿PB运输较近?若能,求出这条界线;若不能,说明理由.
(3)有多少株树苗沿PB运输较近?
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