如图,已知双曲线
的右焦点为
,O为坐标原点,过点F作直线
与双曲线的渐近线交于P,Q两.点,且点P在线段FQ上,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/24/d3020f6e-d901-440f-bf79-957b556c161c.png?resizew=148)
(1)求C的方程;
(2)设
是C的左、右顶点,过点
的直线l与C交于M,N两点,试探究直线
与
的交点S是否在某条定直线上,若是,求出该定直线方程,若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63309dbc3612815f6dbdee23d9a10adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9536ad9be88cf7123e4bfc17f130ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba9256e9c75c966263691f323c29847d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/24/d3020f6e-d901-440f-bf79-957b556c161c.png?resizew=148)
(1)求C的方程;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d66e9d52546beeea016d6d7d3f0ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b06b75fb4e379ff3b99e68f40136cad.png)
2023·广西·一模 查看更多[3]
更新时间:2023-04-10 06:28:46
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解答题-证明题
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较难
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解题方法
【推荐1】已知
是双曲线
上关于原点对称的两点,
在第一象限且与
关于
轴对称,
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交
的右支于点
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(1)求
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(2)过
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.
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(1)求
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(2)过
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【推荐2】已知双曲线
的渐近线为
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(1)求双曲线E的方程;
(2)求证:直线AD过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef66f4832adc43902055a7e6d258037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d3051f43ac48c0a730a791b8a93ad37.png)
(1)求双曲线E的方程;
(2)求证:直线AD过定点.
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解答题-问答题
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较难
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【推荐1】已知A,B分别是双曲线
的左、右顶点,P是C上异于A,B的一点,直线PA,PB的斜率分别为
,且
.
(1)求双曲线C的方程;
(2)已知过点
的直线
,交C的左,右两支于D,E两点(异于A,B).
(i)求m的取值范围;
(ii)设直线AD与直线BE交于点Q,求证:点Q在定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e28f20afd167fd4fd8cb1783bd79cce3.png)
(1)求双曲线C的方程;
(2)已知过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e32f16d75ccb62a04970f861827fca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f13a4dfa82ef9ca147570fd19fb94fc.png)
(i)求m的取值范围;
(ii)设直线AD与直线BE交于点Q,求证:点Q在定直线上.
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【推荐2】已知双曲线
的右焦点为
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.
(1)求双曲线
的方程;
(2)已知点
是双曲线
的右支上异于顶点
的任意点,点
在直线
上,且
,
为
的中点,求证:直线
与直线
的交点在某定曲线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be92f0e0012a7696c78e3e00513edefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6bb019e2d7c6d17d15ec4d9043f5e6.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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