1 . 已知椭圆
:
,直线
:
交椭圆于M,N两点,T为椭圆的右顶点,
的内切圆为圆Q.
(1)求椭圆
的焦点坐标;
(2)求圆Q的方程;
(3)设点
,过P作圆Q的两条切线分别交椭圆C于点A,B,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b801e3da6f1b42d1f68cbf88cbfb4e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6bf66a5f30d94390f59c6a3d1ae6c46.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求圆Q的方程;
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38cc4e8043fb27abccf766c5f314dfe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
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2 . 已知
且
,曲线
,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ff22e5c33965cfbd5ffa61ca5d77be4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cc92463bcbd5b87a353735f641f4ca1.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
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解题方法
3 . 已知F为椭圆
的左焦点,过点F的直线l交椭圆于A,B两点,
,则直线AB的斜率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aba4f902e5c0f46458f727bb49584c5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-25更新
|
195次组卷
|
2卷引用:浙江省温州市2023-2024学年高二上学期期末教学质量统一检测数学试题(A)