设椭圆
的左右焦点为
,离心率为
,抛物线
的准线经过椭圆的右焦点.抛物线
与椭圆
交于
轴上方一点
,若
的三边长恰好是三个连续的自然数,则
的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d093b36d12ebaa70ddefc630302ef9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/122ba80be450e578bef55b932232e884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b0107ffb079a4df455bfd88184b2c7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2020-04-12 23:16:06
|
相似题推荐
填空题-单空题
|
适中
(0.65)
解题方法
【推荐1】设
分别为具有公共焦点
和
的椭圆和双曲线的离心率,
为两曲线的一个公共点,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c6b5a8f4f28fbc0c56f518f73207f5d.png)
_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f994a876391534efe497dc115a53e3fa.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/4170cdf9725650e61d4b79daa3a40088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c6b5a8f4f28fbc0c56f518f73207f5d.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
【推荐2】在
中,
,以点
为一个焦点作一个椭圆,使这个椭圆的另一焦点在
边上,且这个椭圆过
两点,则这个椭圆的焦距长为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe07603e5ec70c15bdccd29ccaae7fe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
解题方法
【推荐1】已知直线
与抛物线
交于
,
两点,
为抛物线
的焦点,若
,则实数
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764ab1262baa09cd62fb6ddba39df2ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35f8f333303816ff66e3aa44bcf97268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
解题方法
【推荐2】过抛物线C:y2=4x的焦点F的动直线交C于A,B两点,线段AB的中点为N,点P(12,4).当|NA|+|NP|的值最小时,点N的横坐标为 ____ .
您最近一年使用:0次