设
分别是椭圆
的左、右焦点,
为该椭圆上一点,满足
.若
的面积为2,则
的值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c38928a92bc4b44ed3c9b89769f5372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04f9bdc6d9f09e14b037ea7d3ee1f623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9df1061c3ba5151ba2f7359acaf356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.1 | B.![]() | C.![]() | D.2 |
2018高三·四川·竞赛 查看更多[1]
更新时间:2019-03-24 16:37:29
|
【知识点】 圆锥曲线
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【推荐1】已知一双曲线的两条渐近线方程为
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b386e2c5d9ad7cec404ce5c40dbebe42.png)
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您最近一年使用:0次
单选题
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容易
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【推荐2】如图,已知双曲线
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/43579d6e-bb1d-4ada-8a22-d59a84eec2f3.png?resizew=183)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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A.![]() ![]() | B.![]() ![]() | C.![]() | D.![]() |
您最近一年使用:0次