已知F是椭圆
:
=1的右焦点,点P是椭圆
上的动点,点Q是圆
:
+
=
上的动点.
(1)试判断以PF为直径的圆与圆
的位置关系;
(2)在x轴上能否找到一定点M,使得
=e (e为椭圆的离心率)?若存在,求出点M的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/199f454cb22c34dfa82798ebd6c9054c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a476588acbf41d798cc234a52fa21a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8cc0b4997cae4d8aec791a1d3923314.png)
(1)试判断以PF为直径的圆与圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)在x轴上能否找到一定点M,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/952695ab04c76faf9d62a24885c03006.png)
2011·江苏南京·一模 查看更多[1]
(已下线)2011届江苏省南京金陵中学高三预测卷3数学
更新时间:2016-11-30 21:30:24
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解答题-问答题
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适中
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名校
【推荐1】已知点
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(1)求
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(1)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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【推荐2】已知圆
过点
,圆
.
(1)求圆
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解题方法
【推荐1】已知椭圆
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e78f1a9cc4dedc05c175ab99b288b9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7b51d7acea42d1b396e27c584a67d2.png)
(2)求
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【推荐2】如图,已知椭圆
:
,离心率为
,
,
为椭圆的左、右焦点,
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的内心,连接
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(1)求椭圆
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc5fbc1a4a419a92760035321319996.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9886d403726994d9175448e0e2225419.png)
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适中
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