题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224609-44046.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224609-74041.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224609-61004.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224609-37479.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224610-49300.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224610-84517.png)
(Ⅰ)求此椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224610-11938.png)
(Ⅱ)直线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224611-84412.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224610-11938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224611-24107.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224611-90762.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224611-66139.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224611-84412.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224612-25999.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224612-10403.png)
解析
试题分析:(Ⅰ)求此椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224610-11938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224610-49300.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224612-34268.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224610-84517.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224612-41454.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224613-55300.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224611-84412.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224610-11938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224611-24107.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224611-90762.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224611-66139.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224611-84412.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224613-64211.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224611-24107.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224611-84412.png)
试题解析:(Ⅰ)由题意得
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224613-80594.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224614-45373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224612-25999.png)
(Ⅱ)设
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224613-64211.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224614-29661.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224614-27543.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224614-81954.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224615-71428.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224615-10921.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224612-10403.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224556-16279.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224557-50545.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224557-24934.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224557-37526.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224558-28353.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224558-39706.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224558-74352.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224558-41331.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224542-18316.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224542-44745.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224543-73433.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224543-25946.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224543-38569.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224543-40054.png)
(1)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224543-38569.png)
(2)抛物线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224544-82181.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224544-47240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224544-47240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224544-57897.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224545-68186.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224545-66637.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224545-23339.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224544-47240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224545-66637.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224545-23339.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224545-68186.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224545-67268.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224546-43292.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224536-87054.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224536-60187.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224517-81534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224517-61371.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224518-33449.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224518-24690.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224518-77202.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224518-80970.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224518-16264.png)
(1)求动点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224518-24690.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224518-10755.png)
(2)(i)已知点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224518-91807.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224518-39860.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-23970.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-80773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-46256.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224518-33449.png)
(ii)当
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-70908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-32404.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-23970.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-80773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-34791.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-23970.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-80773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-34791.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-32404.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-34791.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224519-34791.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224457-76384.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224457-79269.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224458-90773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224458-20553.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224458-38967.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224458-29742.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224459-78605.png)
(2)如图,已知椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224459-75629.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224459-18671.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224500-48938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224459-18671.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224500-95306.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224500-86695.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224500-19414.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224501-35211.jpg)
(ⅰ)设直线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224500-95306.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224501-44538.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224501-38428.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224501-45131.png)
(ⅱ)当点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224500-48938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025224502-65711.png)
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