题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231141-72476.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231141-80713.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231141-13925.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231142-65486.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231142-24652.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231141-13925.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231142-49526.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231142-22172.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231142-11824.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231143-27457.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231143-74611.png)
答案
解析
试题分析:由题可知
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231143-42142.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231143-19436.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231144-88332.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231144-16652.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231131-81015.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231131-52605.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231131-71003.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231131-66396.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231126-17397.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231126-99116.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231127-52306.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231127-16362.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231127-22136.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231127-19845.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231128-41161.jpg)
① ② ③ ④ ⑤
A.①③⑤ | B.②④⑤ | C.①②④ | D.①②③ |
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231111-93962.png)
(Ⅰ)设EF中点为
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231111-52540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231111-52540.png)
(Ⅱ)求证:OG =OH.
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231102-89370.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231102-17892.png)
(Ⅰ)求该椭圆的直角标方程;若椭圆上任一点坐标为
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231102-48110.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231102-66765.png)
(Ⅱ)若椭圆的两条弦
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231103-49330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231103-79737.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231103-32651.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231103-77875.png)
求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231103-48226.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231049-91707.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231050-58799.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231050-11228.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231050-56983.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231050-61439.png)
(Ⅰ)求抛物线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231051-48326.png)
(Ⅱ)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231051-88882.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231051-27800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231051-36338.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231052-39006.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231052-85606.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231052-16896.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231052-85606.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231052-16896.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231052-85380.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231053-54598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231053-48736.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231053-10186.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231053-79124.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231054-52103.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231054-72221.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025231054-71350.png)
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