1 . 以下能成为以行列式形式表示的直线方程
的一个法向量的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29f25d23d0f767500f07f841de759934.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 矩阵的一种运算
,该运算的几何意义为平面上的点
在矩阵
作用下变换成点
,若曲线
,在矩阵
的作用下变换成曲线
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c158a0dafc1ed72d4cd92ce8be537d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1eaadd274b7644891f5550a799a11bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe027ff8bff5b84819a7d2c514e9de2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3fa06df195ae83f7ea63b16158748be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5339be0bc4d6f090b6de7112636d500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760a793ad8dadeba59aef81106e95288.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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真题
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3 . 某班试用电子投票系统选举班干部候选人,全班k名同学都有选举权和被选举权,他们的编号分别为1,2,
,k,规定:同意按“1”,不同意(含弃权)按0”,令
,其中
,且
,则同时同意第1,2号同学当选的人数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237e6478ccb922c911926fc7fe2c1954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940cd957b9db25326a0c7a413df7f1d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d796f419d4ef9ba590cb825ebb87cdd4.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
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2022-11-09更新
|
226次组卷
|
6卷引用:2003年普通高等学校招生考试数学(理)试题(北京卷)
2003年普通高等学校招生考试数学(理)试题(北京卷)2003年普通高等学校招生考试数学(文)试题(北京卷)2019年上海市上海中学高三下学期数学测试2数学试题(已下线)考向16 数列求和及数列的综合应用-备战2022年高考数学一轮复习考点微专题(上海专用)北京一零一中学2020-2021学年高一新生入学摸底测试数学试题辽宁省实验中学2023-2024学年高二下学期期中阶段测试数学试卷
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4 . “列向量
和
不平行”是“二元一次方程组
存在唯一解”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebd3fe5cecb09147f7297a38ae884b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdee8a0b68447952cf355067871ddadb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65bd6cdc598a67059dc4293a1694dc0.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分又不必要条件 |
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解题方法
5 . 已知向量
,
是坐标原点,若
,且
方向是沿
的方向绕着
点按逆时针方向旋转
角得到的,则称
经过一次
变换得到
,现有向量
经过一次
变换后得到
,
经过一次
变换后得到
,…,如此下去,
经过一次
变换后得到
,设
,
,
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac66b00e6cb8d30f293f3baeb501333e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb9307fa2c34a86800d60a194747a788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52831e39d2f23629c6699103ff5d1d67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f66c2415abe65e3fab5574c08d8d1e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc22dd6172821ef009d031d466bdd3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7559d65befe0b85c8929f57c9436cd26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7559d65befe0b85c8929f57c9436cd26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1cd05a7d73db8c7a63ba8e3854ef259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81c88f84b0533f32d4008a5088b21cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d7c41caf47f014d2158abe25a876ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acb8f1484640eef1f6439be92f1a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07d8b2f1f9ead1e148c04fb2538421e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4c7fc2ab3dc022658351fd10a5e07b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4799f1244959c9118346ced85adc4197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/449259bdbfccf519730ad5a0522d80f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3677f2a2a1b4aef3a370a03db832366.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6 . 若矩阵
,记
,以下四个命题中的矩阵
都是
阶矩阵,
,则其中真命题的个数为( )
① 若
,则
; ② 若
,则
;
③
; ④ 若
,则
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a63c1c60b695b37bec52bfb8bae214.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e81d3ab9b33676f3f04bdd34449f68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b72fcdc709e77910cd36a26369648b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e5d6bebc33fde49c8b270b1887de4a5.png)
① 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd9736828195f010db4e1f0a9dea7a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d84d34bdf10cf4772eaa806f2095347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12817ef243b1be51a55dba0d247c166f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c8af715d1ac1da11c83d2e2997da2a.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bbe7feba91e145df12b2d484519846b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3919e463a93ac597ca35c0e3bc000565.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e92a582a1144cde44ce324cb9f1e94b4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 已知直线方程为
,则下列各点不在这条直线上的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b2e8bca5f575fd65a08c073a45eef2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-12-02更新
|
144次组卷
|
3卷引用:上海市奉贤中学2019-2020学年高二上学期期中数学试题
8 . 若二次一元方程组
有无穷多组解,则
、
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d4eecbe7b1345e5e05a409e8f0aa49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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9 . 设
是一个二阶方程,100个A的乘积
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c61924237f624f32726297e91d4a648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddd6ea3cc605f464c9a30a9ae9813200.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-11-14更新
|
125次组卷
|
2卷引用:上海市新川中学2019-2020学年高二上学期第一次月考数学试题
10 . 某班试用电子投票系统选举班干部候选人,全班k名同学都有选举权和被选举权,他们的编号分别为1,2,3,…,k,规定:同意按“1”,不同意(含弃权),按“0”,令
,则同时同意第1,2号同学当选的人数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf8b53691663c1eb6a69728c0f82153.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
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