名校
解题方法
1 . 已知
为椭圆
的右焦点,过点
的直线
与椭圆
交于
两点,
为
的中点,
为坐标原点.若△
是以
为底边的等腰三角形,且△
外接圆的面积为
,则椭圆
的长轴长为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc82d0ff2adb04d3514c62ba69f75b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f97f26237c4e9fa6f8937a7049a8523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f97f26237c4e9fa6f8937a7049a8523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e2d7c958e99bcd9d7f251c19ee3544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2023-11-16更新
|
297次组卷
|
2卷引用:天津市五校联考2023-2024学年高二上学期期中考试数学试题
名校
解题方法
2 . 记![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17f95748e120a8048a0a01c8182ec15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc5850594a09755770a8225da182bd52.png)
,若
有三个不等实根
,若
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17f95748e120a8048a0a01c8182ec15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc5850594a09755770a8225da182bd52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef2ca0936339711b0173fc4620623621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf6902c9f2a26385b1daadd855fc1436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1037287a6d8a9a7766734077faa87b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
2022-11-23更新
|
528次组卷
|
2卷引用:天津市耀华中学2022-2023学年高三上学期第二次月考数学试题
名校
3 . 椭圆
上的点到直线
的距离的最小值是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71667040621b69cd43c1eaa38648f364.png)
您最近一年使用:0次
2016-12-04更新
|
540次组卷
|
2卷引用:2015-2016学年天津市五区县高二上学期期末理科数学试卷