设点
分别为双曲线C
的左右焦点,点A,B分别在双曲线C的左、右支上,若
,
,且
,则双曲线C渐近线的斜率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f98254a6193566587a70c7d95fdabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4c315396424fcf0bacd2a38b6d85d05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f02b03666ba0459f136f755f5d7cf14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53cf3917ad3d25c2f9e29bf3251a72af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfde70d6674ef06b58c60565ff7bf9bf.png)
A.![]() | B.±![]() | C.±![]() | D.±![]() |
更新时间:2022-02-15 15:44:29
|
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【推荐2】过双曲线
的左焦点
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交直线
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.若
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的离心率为( )
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【推荐1】已知点O是锐角△ABC的外心,a,b,c分别为内角A、B、C的对边,A=
,且
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【推荐2】已知|
|=|
|=
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且
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方向上的投影的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28b6a60da7c8c9722a1400d69f3f4f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99d1f4111a0655e2ce6e4913f1a80182.png)
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【推荐3】已知
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【推荐1】已知双曲线
的左右焦点为
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【推荐2】已知
,
是双曲线
:
的左,右焦点,过点
倾斜角为30°的直线与双曲线的左,右两支分别交于点
,
.若
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的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
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解题方法
【推荐1】如图,
分别为双曲线
的左,右焦点,
在左支上,
在右支上,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
,
,则该双曲线的渐近线方程为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/47ebb091-0b2b-4917-b2ed-a951a5c21c33.png?resizew=157)
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【推荐2】如图所示,
,
是双曲线
:
(
,
)的左、右焦点,
的右支上存在一点
满足
,
与双曲线
左支的交点
满足
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