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1 . 下列说法正确的有( )
A.“![]() ![]() |
B.命题“![]() |
C.命题“![]() ![]() |
D.“![]() ![]() ![]() |
您最近一年使用:0次
2024-03-01更新
|
283次组卷
|
3卷引用:江苏省无锡市第一中学2023-2024学年高一上学期期末数学试卷(艺术班)
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解题方法
2 . 双曲线C:
(
)的左,右焦点分别为
,
,过
的直线l与双曲线的右支相交于A,B两点,
的内切圆圆心的横坐标为1,则双曲线C的离心率为 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e1cf2ae8e2ae1bbd27e0223eb4f0665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cfd997d3b66a3b8f7731b26f0ab0c8.png)
A.![]() | B.![]() | C.2 | D.3 |
您最近一年使用:0次
2024-02-11更新
|
301次组卷
|
2卷引用:江苏省镇江市扬中市第二高级中学2023-2024学年高二上学期期末模拟数学试题(二)
解题方法
3 . 已知椭圆
的右焦点为
,上、下顶点分别为
,
,
是
的中点,若
,则椭圆
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fee2afdacb11a6d025578bcaf576d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/428687459110b6295b0d86fdc4d1c26c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
4 . 已知椭圆
的左、右焦点分别为
,离心率
为椭圆上一动点,
面积的最大值为2.
(1)求椭圆
的方程;
(2)若
分别是椭圆
长轴的左、右端点,动点
满足:
,连接
交椭圆于点
为坐标原点,证明:
为定值;
(3)若点
为圆
上的动点,点
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45cb46d9cf81a0e3ba7921971881468c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/2/6fec10bb-b89d-44ed-adad-a32c6c1c0399.png?resizew=150)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fea226393bfaff7311ffd8870eddc55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de10f0277f23e757be5bf05d0e1b14bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7db9b4ac9106bfaf32eba6ae265872b.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd89a03660c85fb78bd7fe82ee3068c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab947514bd5152bfc039c25a47abf2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3977b898ab98ff2cebb0c5bdad26b869.png)
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5 . 已知数列
满足
,且对任意正整数m,n都有
.
(1)求数列
的通项公式;
(2)求数列
的前n项和
,若存在正整数k,使得
,求k的值;
(3)设
,
是数列
的前n项和,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598e934b63b96d7fddb52d21d3682870.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3149c2c5402c5a686047b798a20a3ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ab5a616a68a635ae7499b5608870bfd.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/472280dfeec0c5087942f47ceb5ead63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0f43bb7c0b9b431c30823978bff49c9.png)
您最近一年使用:0次
6 . 已知函数
,曲线
关于直线
对称的曲线为
,若曲线
是某函数的图象,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f3e69dfaeaa91d4f283a01b5174dd4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
7 . 已知
为椭圆
的左焦点,直线
与椭圆
交于
两点,
轴,垂足为
与椭圆
的另一个交点为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69daca955a565fa537347dd0d93783f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f5009709cb959ee06ac660f6e4f88f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8178c63d125ee6235feeb2fc70d02745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c45d2477e4eacc270021b8f0d13af0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() ![]() |
C.直线![]() ![]() | D.![]() |
您最近一年使用:0次
2024-01-30更新
|
332次组卷
|
2卷引用:江苏省镇江市镇江中学2022-2023学年高二上学期期末数学试题
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解题方法
8 . 已知抛物线
上的三点
,B,C,直线AB,AC是圆
的两条切线,则直线BC的方程为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec68c680d1b8c8cfa98b48a27d2c46a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81550d38bd047ac4c6c0ffadc3712491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/277e8382533e3ba18e213ea19ce6b9cb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/96ae584d-41ad-4033-8665-1db4b86155fd.png?resizew=166)
您最近一年使用:0次
2024-01-30更新
|
301次组卷
|
2卷引用:江苏省镇江第一中学2022-2023学年高二上学期期末考试数学试题
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解题方法
9 . 如图,A,B,M,N为抛物线
上四个不同的点,直线
与直线
相交于点
.
(1)记A,B的纵坐标分别为
,
,横坐标分别为
,
,求
,
的值;
(2)记直线
,
的斜率分别为
,
,若
,则直线
是否过x轴上一定点,若过定点,求出定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff32d26c8d44f5fb4813a19c1030a9f5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/32538bed-2aa0-4d23-afa3-b948a7f7ae50.png?resizew=135)
(1)记A,B的纵坐标分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/162972e9dca846683969ef69b1f48509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53eeee95f185a90a266b7cdb3e467b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c97938d07092ac2803ff89a47e5b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0189322d31e9b630ab0c0df14aa030a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/890271ec9c65b6e195e21671f1675d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e786d7dff2b270c93c70fe8c75c8885.png)
(2)记直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80b04ce48c9ace43276552c77108126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
您最近一年使用:0次
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解题方法
10 . 已知椭圆C:
,
,
分别为椭圆的左、右焦点,A,B分别为椭圆的左、右顶点,点P是椭圆上的一个动点,下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
A.存在点P使得![]() |
B.![]() ![]() |
C.若![]() ![]() |
D.直线PA与直线PB的斜率乘积为定值![]() |
您最近一年使用:0次