题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050114-25598.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050114-89468.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050115-27328.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050115-55347.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050115-74783.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050115-24752.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050115-55347.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050116-92560.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050116-68804.gif)
⑴求双曲线的离心率;
⑵若
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050116-28658.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050116-53699.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050116-23673.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050117-93582.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050117-63453.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050117-20166.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050118-12939.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050118-48104.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050118-38157.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050118-88987.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050118-57928.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050119-37479.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050119-99046.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050119-39278.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050119-52056.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050120-24487.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050120-66787.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050120-92803.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050120-97274.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050117-63453.gif)
⑵∵
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050116-23673.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050120-14849.gif)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050115-55347.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050116-53699.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050119-99046.gif)
得
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050121-18402.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050121-36460.gif)
由⑴得
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050121-40600.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050121-97871.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050117-20166.gif)
核心考点
试题【 (12分)已知,分别是双曲线的左右焦点,以坐标原点为圆心,以双曲线的半焦距为半径的圆与双曲线在第一象限的交点为,与轴正半轴的交点为,点在轴上的射影为,且.⑴求】;主要考察你对双曲线的定义与方程等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050104-77299.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050104-81053.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050105-33889.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050105-65318.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050105-52133.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050105-35937.gif)
(1)求该双曲线的方程;
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050106-57164.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050104-81053.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050106-57164.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050106-25374.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050106-95338.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050106-18092.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050107-22633.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050106-25374.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050046-90006.gif)
已知双曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050047-86992.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050048-90628.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050048-90628.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050048-16035.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050048-23761.gif)
(1)若双曲线的左焦点为
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050048-24066.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050048-38423.gif)
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050048-13621.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050048-90860.gif)
(3)如图,如果直线l与双曲线的交点为P、Q,与两条渐近线的交点为
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050048-50588.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050048-12549.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050049-56480.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050041-43102.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050041-33891.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050041-24683.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050042-38347.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050037-25817.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050038-97604.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050038-86877.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050038-37816.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024050030-26285.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
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