1 . 将函数
的图象每个点纵坐标不变,横坐标变为原来的一半,再将所得图象向左平移
个单位,向上平移1个单位,得到函数
的图象,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b923078510697d5f7f9ea392eb76dd9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
A.![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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2 . 下列说法正确的是( )
A.事件A与事件B为互斥事件,则事件A与事件B为对立事件 |
B.事件A与事件B为对立事件,则事件A与事件B为互斥事件 |
C.若![]() ![]() ![]() |
D.一组成对样本数据线性相关程度越强,则这组数据的样本相关系数的绝对值就越接近于1 |
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解题方法
3 . 已知向量
,
,则向量
在向量
上的投影向量为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68f8ec049c5a608c3f2d3a05534e93c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339a9c8006379e2f954569800b97d6cd.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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解题方法
4 . 已知
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891322ef3ed2ba69fcc077739f1259b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab22273fedcacb6dfb71da25429e4ac1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/718d2d8ff1dbc1fb3f473a00c9e958c9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
5 . 已知数列
满足
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/842b9a65ee998c6fa24ab651d90a9ad2.png)
A.![]() | B.![]() ![]() ![]() ![]() |
C.当![]() ![]() | D.![]() ![]() |
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名校
解题方法
6 .
部分图象大致是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82d8065db42660491ab739efa6d4fbe9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-07-27更新
|
491次组卷
|
5卷引用:广东省韶关市2022-2023学年高二下学期期末数学试题
广东省韶关市2022-2023学年高二下学期期末数学试题(已下线)模块六 专题2 全真基础模拟2 期末研习室高一人教A四川省绵阳南山中学实验学校2023-2024学年高三上学期9月月考数学(理)试题河南省平顶山市第一高级中学2023-2024学年高三上学期阶段测试数学试题(11月)(已下线)重组3 高二期末真题重组卷(广东卷)A基础卷
7 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8c732e2293ea4e6376cee96914e7efe.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a7de5b70003502e40b95b3b7d3d933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8c732e2293ea4e6376cee96914e7efe.png)
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解题方法
8 . 已知
的内角A,B,C的对边分别为a,b,c,
.
(1)求角B;
(2)延长
至D点,若
,
的面积为
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf969c83eae3c5abfab5f51e50e27be9.png)
(1)求角B;
(2)延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb57d84f9bbcb3e30d4ce7e2e1e8604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eb8328a00273757335d64fcddda1861.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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9 . 已知数列
为等比数列,
,
,且
.
(1)求数列
的通项公式;
(2)记
,设
的前n项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2485a6c5fe3e575b34d3a5f494aaa61d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caafc40dba18e9c7d191319afe0e3e1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed0fa5b1fb02dd41f2eee87ba5131b95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1302abaebc9df026c2a83291063e83b4.png)
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解题方法
10 . 如图①所示,在
中,
,
,
,D,E分别是线段
,
上的点,
且
,将
沿
折起到
的位置,使
,如图②.
(1)若点N在线段
上,且
,求证:
平面
;
(2)若M是
的中点,求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a078495ba47076ccaa28b46f765d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b5f7197e5bd1afeea4d931307956a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa2a83fed9bf4cb09d84a980452e346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2fef4031c10abc18c8747af6b9a8a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/29/b63c75e0-fe00-4449-b7c6-d3019620dba0.png?resizew=286)
(1)若点N在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209618b28b2c3d588307a80c26c0c3ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5bee3329cfa6f471a0e0e2497a3a07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bca84ad86c648d3bb20c8909c8da3f.png)
(2)若M是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d40f68a97d78ee6e736ce80bdd30fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/483f030abf61c6a0882d656d63cf4512.png)
您最近一年使用:0次
2023-07-27更新
|
447次组卷
|
5卷引用:广东省韶关市2022-2023学年高二下学期期末数学试题
广东省韶关市2022-2023学年高二下学期期末数学试题(已下线)第02讲:空间向量与立体几何交汇(必刷6大考题+7大题型)-2023-2024学年高二数学上学期《考点·题型·难点》期末高效复习(人教A版2019选择性必修第一册)(已下线)特训02 期末解答题汇编(第1-5章,精选38道)-2023-2024学年高二数学《重难点题型·高分突破》(人教A版2019选择性必修第二册)辽宁省重点高中沈阳市郊联体2024届高三上学期期中数学试题(已下线)第一章 空间向量与立体几何(知识归纳+6类题型突破)-2023-2024学年高二数学单元速记·巧练(人教A版2019选择性必修第一册)