数学美的表现形式多种多样,其中美丽的黄金分割线分出的又岂止身材的绝妙配置,我们称
(其中
)的双曲线
为黄金双曲线,若P为黄金双曲线上除实轴端点外任意一点,以原点O为圆心,实轴长为直径作
,过P作
的两条切线,切点分别为A,B,直线
与x,y轴分别交于M,N两点,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff0e1e8c31e0d79c23a52ffdd50d7cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50cd9934f11f045c896ec7e5de3135f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e3b4c19bf6e7ca0eebec8ddc73bb9fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e7533f36266ae123c96bfc961a54966.png)
A.![]() | B.![]() | C.![]() | D.![]() |
21-22高二下·贵州铜仁·期末 查看更多[2]
更新时间:2022-07-29 18:04:36
|
【知识点】 双曲线中的定值问题
相似题推荐
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【推荐1】已知双曲线
的左、右焦点分别为
,
,
为双曲线
右支上的动点,过
作两渐近线的垂线,垂足分别为
,
.若圆
与双曲线
的渐近线相切,则下列结论正确的有( )个.
①
;
②
为定值;
③双曲线
的离心率
;
④当点
异于顶点时,△
的内切圆的圆心总在直线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/540f0911e1e0e2e94503ce24b8e2044b.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/d9df0d79e42d86b0def4caa10dffa75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/559d66fd8b309fd440ce9bda78a579c9.png)
③双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7b7f351578f6fcb9cc91f2d0c9c1840.png)
④当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5a8e1bc9748e5519dcd9981b7eb251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e93309062496a9c6d3dead5a9fa59c7.png)
A.1 | B.2 | C.3 | D.4 |
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【推荐2】设直线
与双曲线
相交于
两点,
为
上不同于
的一点,直线
的斜率分别为
,若
的离心率为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92d82f6055983b8e9bb5a9cd8e09ebe5.png)
A.3 | B.1 | C.2 | D.![]() |
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