1 . 若
,则数列
的前n项和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a78a26e3eeac053424c52ab90f6a3490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7fece9768f5455d2e5e37b628af9d0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
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2 .
的展开式中
的系数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715ab73287b7f73dc764e42069554b9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a96646ff0d3d2a0f14be99ab855eebba.png)
A.10 | B.![]() | C.20 | D.![]() |
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解题方法
3 . 已知函数
的部分图象如图所示,则下列选项错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/bf6bc20f-3953-4d4a-adfa-0f78c351b70d.png?resizew=175)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604b9173da10b8aa2205f4ec6eebb293.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/bf6bc20f-3953-4d4a-adfa-0f78c351b70d.png?resizew=175)
A.![]() |
B.函数![]() ![]() |
C.函数![]() ![]() |
D.函数![]() ![]() |
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解题方法
4 . 设不同的直线
,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea9b75710cba8975dd54493a8dbd6e83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.1 | D.4 |
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2024-03-12更新
|
391次组卷
|
3卷引用:安徽省宣城市2023-2024学年高二上学期1月期末考试数学试卷
5 . 在等差数列
中,已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37393a73bc9c1006711e3ef5b853453a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9bbe98100c8067ff36ac536d043a85.png)
A.-1 | B.0 | C.1 | D.2 |
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6 . 已知点
和直线
,点
是点
关于直线
的对称点.
(1)求点
的坐标;
(2)
为坐标原点,且点
满足
.若点
的轨迹与直线
有公共点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a23e87d16c32b5aa4357f481b5808a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34801f6a91fcd4d9ec73cecf21e3504c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d3361eae6ffd24142f2e935dda5f552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb718f1c0f7019503b92e11e92ec4c12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
7 . 已知向量
,向量
,则
与
的夹角大小为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68f8ec049c5a608c3f2d3a05534e93c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a91348ecc4addde890d479306a024478.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 已知曲线C:
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3abd48b616fb21dbc50c96c49c9b291e.png)
A.存在m,使C表示圆 |
B.当![]() ![]() |
C.当![]() ![]() ![]() |
D.当C表示双曲线时,则![]() ![]() |
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9 . 已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/253a1f84cbb9f46097db4a4d309e7a8a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8faa65f3d481ab7008a675ed05e6257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/253a1f84cbb9f46097db4a4d309e7a8a.png)
您最近一年使用:0次
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解题方法
10 . 若幂函数
在区间
上单调递减,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/253170342fa7f0967db1aaf93ab489a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd50020c0e3198d4a6b2d26a413b1b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次