1 . 已知抛物线C:
的焦点F为椭圆
的右顶点,直线l是抛物线C的准线,点A在抛物线C上,过A作
,垂足为B,若直线BF的斜率
,则
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b3932717847eb0859019f07a7445ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b519ec58ca969b4f569cdfcb846183a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbd6800d9e3c11b10e1e316a44ec1c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aea56fe605bf3af5de9f3cd6632180f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773a7c0da906df18930ff68bc75dedb5.png)
您最近一年使用:0次
2019-03-07更新
|
705次组卷
|
2卷引用:【市级联考】安徽省马鞍山市2019届高三高考一模(理科)数学试题
2 . 已知双曲线C:
(
,
)的离心率为
,C与抛物线
的准线交于A、B两点,
,则双曲线C的焦距为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae5a64bcb77f5f64e4af6930c249a270.png)
您最近一年使用:0次