1 . 已知双曲线
的左、右焦点分别为
为坐标原点,A,B为双曲线上两点,且满足
,
为C上异于A,B的动点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abfde9ec4a22b0daa1ea8cb65a192ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447120a38d5e15d7a01d36231d648d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de3ff4b03ad2a29a648e9bdb403696d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.C的渐近线方程为![]() |
B.双曲线C的焦点到渐近线的距离为![]() |
C.当![]() ![]() |
D.设MA,MB的斜率分别为![]() ![]() |
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解题方法
2 . 已知双曲线
,点
,
分别在两条渐近线上(不与原点
重合),点
是
上的一个动点,且
,记直线
的斜率分别为
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538724a2186d3433efeceb10e7f7b2d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef7d76b595a30a00dade6f3e1496e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/416f71ce7c4353b22d83d04430e5b2b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098e62161dffbcefd4cfdcee73b0a64b.png)
A.![]() | B.当![]() ![]() |
C.![]() | D.![]() |
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3 . 已知双曲线
(
,
)的左、右焦点分别为
,
,点
在双曲线C上,TP垂直x轴于点P,且点P到双曲线C的渐近线的距离为2.
(1)求双曲线C的标准方程;
(2)已知过点
的直线l与双曲线C的右支交于A,B两点,且
的外接圆圆心Q在y轴上,求满足条件的所有直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5c2e64358e0ec7aa142c336d970306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.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/2074d7378487dc7f1d26c5776fb3f459.png)
(1)求双曲线C的标准方程;
(2)已知过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
您最近一年使用:0次
2022-03-04更新
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981次组卷
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