22-23高二·江苏·假期作业
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解题方法
1 . 已知双曲线的虚轴长为4,离心率
,
分别是双曲线的左、右焦点,若过
的直线与双曲线的左支交于
两点,且
,则双曲线的实轴长为________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790f682ab3b50ba3f79e1ab6c67c75a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246d53445b489dcbb084ec7eef635811.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
您最近一年使用:0次
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2 . 已知双曲线
的上、下焦点分别为
,
,点
,则该双曲线的渐近线方程为________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7ff34ea070af73fb50fbb8716d49b0.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acca1c00ee33a8d7aabf1d626541259e.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/5a865d0cdbd1f950ba14112528db7af2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7ff34ea070af73fb50fbb8716d49b0.png)
您最近一年使用:0次
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3 . 已知F是双曲线
的右焦点,P是双曲C上的点,
,
(1)若点P在双曲线右支上,则
的最小值为__________ ;
(2)若点P在双曲线左支上,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb49a5a86953fc7fba47cd5fe57d375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f85c9664a51b536e077371955d5db14.png)
(1)若点P在双曲线右支上,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e64b3f4aa63f7f141c76f1d539869c.png)
(2)若点P在双曲线左支上,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e64b3f4aa63f7f141c76f1d539869c.png)
您最近一年使用:0次
2021-01-21更新
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391次组卷
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