1 . 已知两定点
,
,点P是平面内的动点,且
,记动点P的轨迹是W.
(1)求动点P的轨迹W的方程;
(2)圆
与x轴交于C,D两点,过圆上一动点K(异于C,D点)作两条直线KC,KD分别交轨迹W于G,H,M,N四点.设四边形GMHN面积为S,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5799ad0c7fb4bc6ece18d1eb6ed61d0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aad58326883500e654f384dc80c9cc08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/722feac1fba9e2c1af20d81731171e01.png)
(1)求动点P的轨迹W的方程;
(2)圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79fec9ac736204d6e78d80a77c8d6e2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa2d4308ce1402c3562f730f95d1d066.png)
您最近一年使用:0次
名校
2 . 已知椭圆E:
的两个焦点与短轴的一个端点是等边三角形的三个顶点
且长轴长为4.
求椭圆E的方程:
Ⅱ
若A是椭圆E的左顶点,经过左焦点F的直线1与椭圆E交于C,D两点,求
与
的面积之差的绝对值的最大值
为坐标原点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf93f9364fec81e6cdabf3628599afa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc98123df1766ddb0822c0af25a4606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316510e4a0e51d1d69849d62167c9923.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28846f9e7d9baf5275a59999133bf2fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
您最近一年使用:0次
2016-12-04更新
|
1061次组卷
|
9卷引用:四川省攀枝花市第三高级中学校2021-2022学年高二上学期期中考试数学(文)试题