已知直线
与双曲线
相切,且
与
的两条渐近线
分别交于
两点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f947d030c265753e4201ae4d9c69e99.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f24e616b5a35ff372c78c1472f156ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0017262e45089093f70001cae2c60257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531322f8ec2d4d27f8cc421ee67e7d14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac2c3c28e400c9ede343fd8bd7f10b28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f947d030c265753e4201ae4d9c69e99.png)
23-24高三上·云南昆明·开学考试 查看更多[2]
云南省昆明市第十中学2024届高三上学期开学考试数学试题(已下线)人教A版2019选择性必修第一册综合测试(提升)-2023-2024学年高二数学《一隅三反》系列(人教A版2019选择性必修第一册)
更新时间:2023-08-21 00:17:29
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【知识点】 双曲线中的定值问题
相似题推荐
【推荐1】已知双曲线
,过原点的直线l与双曲线交于B,C两点,A为双曲线的右顶点,F为双曲线的左焦点,直线AB,AC的斜率之积为
,则b=______ ;若
,则
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe294e939b9fb81256d7218a773b5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e360aabc8c6a43a5d8b25d934bd68be5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff00441c41fc516c37876d266fcbc6.png)
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适中
(0.65)
解题方法
【推荐2】我们知道:双曲线上任意一点到两渐近线的距离之积是常数.若P是双曲线
上一点,过P作E的两渐近线的垂线,垂足分别为A、B,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22621008cfe9e51aa32d41521edf77e4.png)
___________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21b82181bf5d8655b7e818025ef86e9.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3390bb20d0954f0f320771a1c19d49ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f84607a3bb864f6c8776aa5c80fe4ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22621008cfe9e51aa32d41521edf77e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21b82181bf5d8655b7e818025ef86e9.png)
您最近一年使用:0次