1 . 动点G到点
的距离比到直线
的距离小2.
(1)求G的轨迹的方程;
(2)设动点G的轨迹为曲线C,过点F作斜率为
,
的两条直线分别交C于M,N两点和P,Q两点,其中
.设线段
和
的中点分别为A,B,过点F作
,垂足为D,试问:是否存在定点T,使得线段
的长度为定值.若存在,求出点T的坐标及定值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be92f0e0012a7696c78e3e00513edefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d1bed885fcb17bdcc978ed955677f2b.png)
(1)求G的轨迹的方程;
(2)设动点G的轨迹为曲线C,过点F作斜率为
![](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/1ae3ab048431fdc75f9a2eef2a762f37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c33daacca5f6f6681b662295ebb98587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad1ab6c10bc0a8bfbdc3b4824c2de1d1.png)
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2 . 已知椭圆C:
,过右焦点F作直线与椭圆C交于
两点,以
为直径画圆,则该圆与直线
的位置关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
A.相交 | B.相切 | C.相离 | D.不确定 |
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2024-02-27更新
|
117次组卷
|
2卷引用:湖北省新高考联考协作体2023-2024学年高二上学期期末考试数学试题
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解题方法
3 . 若等比数列
的第2项和第6项分别为3和12,则
的第4项为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
A.4 | B.![]() | C.6 | D.![]() |
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4 . 假设
,
且A与B相互独立,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8186128367e3f89fb02df4ae19ca7e96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c770219ea5825b596b68fd805987e4b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2731eecd8ff3e2264eebfd7cbbaaea1b.png)
A.0.3 | B.0.4 | C.0.7 | D.0.58 |
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2024-02-27更新
|
841次组卷
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2卷引用:湖北省新高考联考协作体2023-2024学年高二上学期期末考试数学试题
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5 . 已知空间向量
,
,则B点到直线
的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9667d1701d24939ca4c7e4f40435d581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53d00fc9e891d8b3ac24845ded91f6d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 已知点
和
:
,过P点的两条直线分别与
相切于A,B两点.则以下命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e262b7599fda82ae392ac10df97feff0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb52bba9798c625c7cd778636bceea32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74f8ebed1c19f199dc9165162dc5d3f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb52bba9798c625c7cd778636bceea32.png)
A.![]() |
B.![]() |
C.P、A、Q、B均在圆![]() |
D.A,B所在直线方程为![]() |
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7 . 下列各式中值为
的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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8 . 某公园有一座摩天轮,其旋转半径
米,最高点距离地面
米,匀速运行一周大约
分钟
某人在最低点的位置坐上摩天轮,则第
分钟时,他距地面大约为______ 米![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53c7539ed297ea63b9ace6f5cc58ca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa86faa9bfef703aead8c2606684dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b837fd9c52f60bfb3b6852733abc790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/8943e4f4-ac87-4867-b6eb-a229100830f1.png?resizew=157)
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9 . 已知函数
,
,
,
,
与
的图象共有
个不同的交点
、
、
、
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed398adf2e23a4b691c4477070416925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6e5e0b0c6d24e08772d6799ebb0167.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fc878ea92f396d8559210f4bd086b0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6e5e0b0c6d24e08772d6799ebb0167.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56720e2f2b0ddd72156da495923698da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2852ae85cfcc804b3192ea8543c88938.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92abae836b8026511113ad8c3ea23028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe80f4988dab6cba196af6d9557f398.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知函数
.
(1)判断并证明
的奇偶性,并求出使
成立的
的取值范围;
(2)设(1)中
的取值范围为集合
现有函数
,其定义域为
,若对A中任意一个元素
,都存在
个不同的实数
,
,
,
,
,使
(其中
,
,
,
,
,
,)则称
为A的“
重对应函数”
试判断
是否为A的“
重对应函数”?如果是,写出
并计算出
;如果不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4695b2b77d732dce797ac5698e5817a.png)
(1)判断并证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea516456ebb43940210395068f8b6cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7980e96d332aa0b4ed25c2dbff79b366.png)
(2)设(1)中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7980e96d332aa0b4ed25c2dbff79b366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f3edd98816dcf1b2ea50d630a565420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e93d8fb77f5bd2c0fc690752dfd771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07096af3b99fd1cb11c31f19a2c6408e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c20ca5640fd535bc0348214145cc39a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dad6dc6c1e3d1cfeaa7df8aa6cda224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45176df950dfe48b8ca7eac08ee349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1744efb0c2eeaeb6c782c4ae54d85a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f264f140de3c9a2ae2794385b76f182.png)
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